Pre-Algebra Examples

$\begin{array}{c} x & y \\ 8 & 2.4 \\ 24 & 6.48 \\ 64 & 14.08 \end{array}$

Step 1

Check if the function rule is linear.

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Step 1.1

To find if the table follows a function rule, check to see if the values follow the linear form $y = a x + b$ .

$y = a x + b$

Step 1.2

Build a set of equations from the table such that $y = a x + b$ .

$2.4 = a (8) + b 6.48 = a (24) + b 14.08 = a (64) + b$

Step 1.3

Calculate the values of $a$ and $b$ .

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Step 1.3.1

Solve for $b$ in $2.4 = a (8) + b$ .

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Step 1.3.1.1

Rewrite the equation as $a (8) + b = 2.4$ .

$a (8) + b = 2.4$

$6.48 = a (24) + b$

$14.08 = a (64) + b$

Step 1.3.1.2

Move $8$ to the left of $a$ .

$8 a + b = 2.4$

$6.48 = a (24) + b$

$14.08 = a (64) + b$

Step 1.3.1.3

Subtract $8 a$ from both sides of the equation.

$b = 2.4 - 8 a$

$6.48 = a (24) + b$

$14.08 = a (64) + b$

$b = 2.4 - 8 a$

$6.48 = a (24) + b$

$14.08 = a (64) + b$

Step 1.3.2

Replace all occurrences of $b$ with $2.4 - 8 a$ in each equation.

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Step 1.3.2.1

Replace all occurrences of $b$ in $6.48 = a (24) + b$ with $2.4 - 8 a$ .

$6.48 = a (24) + 2.4 - 8 a$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

Step 1.3.2.2

Simplify $6.48 = a (24) + 2.4 - 8 a$ .

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Step 1.3.2.2.1

Simplify the left side.

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Step 1.3.2.2.1.1

Remove parentheses.

$6.48 = a (24) + 2.4 - 8 a$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

$6.48 = a (24) + 2.4 - 8 a$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

Step 1.3.2.2.2

Simplify the right side.

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Step 1.3.2.2.2.1

Simplify $a (24) + 2.4 - 8 a$ .

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Step 1.3.2.2.2.1.1

Move $24$ to the left of $a$ .

$6.48 = 24 a + 2.4 - 8 a$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

Step 1.3.2.2.2.1.2

Subtract $8 a$ from $24 a$ .

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = a (64) + b$

Step 1.3.2.3

Replace all occurrences of $b$ in $14.08 = a (64) + b$ with $2.4 - 8 a$ .

$14.08 = a (64) + 2.4 - 8 a$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.2.4

Simplify $14.08 = a (64) + 2.4 - 8 a$ .

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Step 1.3.2.4.1

Simplify the left side.

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Step 1.3.2.4.1.1

Remove parentheses.

$14.08 = a (64) + 2.4 - 8 a$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = a (64) + 2.4 - 8 a$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.2.4.2

Simplify the right side.

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Step 1.3.2.4.2.1

Simplify $a (64) + 2.4 - 8 a$ .

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Step 1.3.2.4.2.1.1

Move $64$ to the left of $a$ .

$14.08 = 64 a + 2.4 - 8 a$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.2.4.2.1.2

Subtract $8 a$ from $64 a$ .

$14.08 = 56 a + 2.4$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = 56 a + 2.4$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = 56 a + 2.4$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = 56 a + 2.4$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$14.08 = 56 a + 2.4$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3

Solve for $a$ in $14.08 = 56 a + 2.4$ .

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Step 1.3.3.1

Rewrite the equation as $56 a + 2.4 = 14.08$ .

$56 a + 2.4 = 14.08$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3.2

Move all terms not containing $a$ to the right side of the equation.

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Step 1.3.3.2.1

Subtract $2.4$ from both sides of the equation.

$56 a = 14.08 - 2.4$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3.2.2

Subtract $2.4$ from $14.08$ .

$56 a = 11.68$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$56 a = 11.68$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3.3

Divide each term in $56 a = 11.68$ by $56$ and simplify.

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Step 1.3.3.3.1

Divide each term in $56 a = 11.68$ by $56$ .

$\frac{56 a}{56} = \frac{11.68}{56}$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3.3.2

Simplify the left side.

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Step 1.3.3.3.2.1

Cancel the common factor of $56$ .

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Step 1.3.3.3.2.1.1

Cancel the common factor.

$\frac{56 a}{56} = \frac{11.68}{56}$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3.3.2.1.2

Divide $a$ by $1$ .

$a = \frac{11.68}{56}$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$a = \frac{11.68}{56}$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$a = \frac{11.68}{56}$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.3.3.3

Simplify the right side.

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Step 1.3.3.3.3.1

Divide $11.68$ by $56$ .

$a = 0.20857142$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$a = 0.20857142$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$a = 0.20857142$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

$a = 0.20857142$

$6.48 = 16 a + 2.4$

$b = 2.4 - 8 a$

Step 1.3.4

Replace all occurrences of $a$ with $0.20857142$ in each equation.

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Step 1.3.4.1

Replace all occurrences of $a$ in $6.48 = 16 a + 2.4$ with $0.20857142$ .

$6.48 = 16 (0.20857142) + 2.4$

$a = 0.20857142$

$b = 2.4 - 8 a$

Step 1.3.4.2

Simplify the right side.

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Step 1.3.4.2.1

Simplify $16 (0.20857142) + 2.4$ .

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Step 1.3.4.2.1.1

Multiply $16$ by $0.20857142$ .

$6.48 = 3.33714285 + 2.4$

$a = 0.20857142$

$b = 2.4 - 8 a$

Step 1.3.4.2.1.2

Add $3.33714285$ and $2.4$ .

$6.48 = 5.73714285$

$a = 0.20857142$

$b = 2.4 - 8 a$

$6.48 = 5.73714285$

$a = 0.20857142$

$b = 2.4 - 8 a$

$6.48 = 5.73714285$

$a = 0.20857142$

$b = 2.4 - 8 a$

Step 1.3.4.3

Replace all occurrences of $a$ in $b = 2.4 - 8 a$ with $0.20857142$ .

$b = 2.4 - 8 \cdot 0.20857142$

$6.48 = 5.73714285$

$a = 0.20857142$

Step 1.3.4.4

Simplify the right side.

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Step 1.3.4.4.1

Simplify $2.4 - 8 \cdot 0.20857142$ .

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Step 1.3.4.4.1.1

Multiply $- 8$ by $0.20857142$ .

$b = 2.4 - 1.66857142$

$6.48 = 5.73714285$

$a = 0.20857142$

Step 1.3.4.4.1.2

Subtract $1.66857142$ from $2.4$ .

$b = 0.73142857$

$6.48 = 5.73714285$

$a = 0.20857142$

$b = 0.73142857$

$6.48 = 5.73714285$

$a = 0.20857142$

$b = 0.73142857$

$6.48 = 5.73714285$

$a = 0.20857142$

$b = 0.73142857$

$6.48 = 5.73714285$

$a = 0.20857142$

Step 1.3.5

Since $6.48 = 5.73714285$ is not true, there is no solution.

No solution

Step 1.4

Since $y \neq y$ for the corresponding $x$ values, the function is not linear.

The function is not linear

Step 2

Check if the function rule is quadratic.

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Step 2.1

To find if the table follows a function rule, check whether the function rule could follow the form $y = a x^{2} + b x + c$ .

$y = a x^{2} + b x + c$

Step 2.2

Build a set of $3$ equations from the table such that $y = a x^{2} + b x + c$ .

Step 2.3

Calculate the values of $a$ , $b$ , and $c$ .

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Step 2.3.1

Solve for $c$ in $2.4 = a \cdot 8^{2} + b (8) + c$ .

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Step 2.3.1.1

Rewrite the equation as $a \cdot 8^{2} + b (8) + c = 2.4$ .

$a \cdot 8^{2} + b (8) + c = 2.4$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.1.2

Simplify each term.

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Step 2.3.1.2.1

Raise $8$ to the power of $2$ .

$a \cdot 64 + b (8) + c = 2.4$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.1.2.2

Move $64$ to the left of $a$ .

$64 \cdot a + b (8) + c = 2.4$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.1.2.3

Move $8$ to the left of $b$ .

$64 a + 8 b + c = 2.4$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

$64 a + 8 b + c = 2.4$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.1.3

Move all terms not containing $c$ to the right side of the equation.

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Step 2.3.1.3.1

Subtract $64 a$ from both sides of the equation.

$8 b + c = 2.4 - 64 a$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.1.3.2

Subtract $8 b$ from both sides of the equation.

$c = 2.4 - 64 a - 8 b$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

$c = 2.4 - 64 a - 8 b$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

$c = 2.4 - 64 a - 8 b$

$6.48 = a \cdot 24^{2} + b (24) + c$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2

Replace all occurrences of $c$ with $2.4 - 64 a - 8 b$ in each equation.

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Step 2.3.2.1

Replace all occurrences of $c$ in $6.48 = a \cdot 24^{2} + b (24) + c$ with $2.4 - 64 a - 8 b$ .

$6.48 = a \cdot 24^{2} + b (24) + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.2

Simplify $6.48 = a \cdot 24^{2} + b (24) + 2.4 - 64 a - 8 b$ .

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Step 2.3.2.2.1

Simplify the left side.

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Step 2.3.2.2.1.1

Remove parentheses.

$6.48 = a \cdot 24^{2} + b (24) + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

$6.48 = a \cdot 24^{2} + b (24) + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.2.2

Simplify the right side.

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Step 2.3.2.2.2.1

Simplify $a \cdot 24^{2} + b (24) + 2.4 - 64 a - 8 b$ .

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Step 2.3.2.2.2.1.1

Simplify each term.

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Step 2.3.2.2.2.1.1.1

Raise $24$ to the power of $2$ .

$6.48 = a \cdot 576 + b (24) + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.2.2.1.1.2

Move $576$ to the left of $a$ .

$6.48 = 576 \cdot a + b (24) + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.2.2.1.1.3

Move $24$ to the left of $b$ .

$6.48 = 576 a + 24 b + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

$6.48 = 576 a + 24 b + 2.4 - 64 a - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.2.2.1.2

Simplify by adding terms.

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Step 2.3.2.2.2.1.2.1

Subtract $64 a$ from $576 a$ .

$6.48 = 512 a + 24 b + 2.4 - 8 b$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.2.2.1.2.2

Subtract $8 b$ from $24 b$ .

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + c$

Step 2.3.2.3

Replace all occurrences of $c$ in $14.08 = a \cdot 64^{2} + b (64) + c$ with $2.4 - 64 a - 8 b$ .

$14.08 = a \cdot 64^{2} + b (64) + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.2.4

Simplify $14.08 = a \cdot 64^{2} + b (64) + 2.4 - 64 a - 8 b$ .

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Step 2.3.2.4.1

Simplify the left side.

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Step 2.3.2.4.1.1

Remove parentheses.

$14.08 = a \cdot 64^{2} + b (64) + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = a \cdot 64^{2} + b (64) + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.2.4.2

Simplify the right side.

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Step 2.3.2.4.2.1

Simplify $a \cdot 64^{2} + b (64) + 2.4 - 64 a - 8 b$ .

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Step 2.3.2.4.2.1.1

Simplify each term.

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Step 2.3.2.4.2.1.1.1

Raise $64$ to the power of $2$ .

$14.08 = a \cdot 4096 + b (64) + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.2.4.2.1.1.2

Move $4096$ to the left of $a$ .

$14.08 = 4096 \cdot a + b (64) + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.2.4.2.1.1.3

Move $64$ to the left of $b$ .

$14.08 = 4096 a + 64 b + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = 4096 a + 64 b + 2.4 - 64 a - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.2.4.2.1.2

Simplify by adding terms.

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Step 2.3.2.4.2.1.2.1

Subtract $64 a$ from $4096 a$ .

$14.08 = 4032 a + 64 b + 2.4 - 8 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.2.4.2.1.2.2

Subtract $8 b$ from $64 b$ .

$14.08 = 4032 a + 56 b + 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = 4032 a + 56 b + 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = 4032 a + 56 b + 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = 4032 a + 56 b + 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = 4032 a + 56 b + 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$14.08 = 4032 a + 56 b + 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3

Solve for $a$ in $14.08 = 4032 a + 56 b + 2.4$ .

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Step 2.3.3.1

Rewrite the equation as $4032 a + 56 b + 2.4 = 14.08$ .

$4032 a + 56 b + 2.4 = 14.08$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.2

Move all terms not containing $a$ to the right side of the equation.

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Step 2.3.3.2.1

Subtract $56 b$ from both sides of the equation.

$4032 a + 2.4 = 14.08 - 56 b$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.2.2

Subtract $2.4$ from both sides of the equation.

$4032 a = 14.08 - 56 b - 2.4$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.2.3

Subtract $2.4$ from $14.08$ .

$4032 a = - 56 b + 11.68$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$4032 a = - 56 b + 11.68$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3

Divide each term in $4032 a = - 56 b + 11.68$ by $4032$ and simplify.

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Step 2.3.3.3.1

Divide each term in $4032 a = - 56 b + 11.68$ by $4032$ .

$\frac{4032 a}{4032} = \frac{- 56 b}{4032} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.2

Simplify the left side.

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Step 2.3.3.3.2.1

Cancel the common factor of $4032$ .

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Step 2.3.3.3.2.1.1

Cancel the common factor.

$\frac{4032 a}{4032} = \frac{- 56 b}{4032} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.2.1.2

Divide $a$ by $1$ .

$a = \frac{- 56 b}{4032} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = \frac{- 56 b}{4032} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = \frac{- 56 b}{4032} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.3

Simplify the right side.

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Step 2.3.3.3.3.1

Simplify each term.

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Step 2.3.3.3.3.1.1

Cancel the common factor of $- 56$ and $4032$ .

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Step 2.3.3.3.3.1.1.1

Factor $56$ out of $- 56 b$ .

$a = \frac{56 (- b)}{4032} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.3.1.1.2

Cancel the common factors.

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Step 2.3.3.3.3.1.1.2.1

Factor $56$ out of $4032$ .

$a = \frac{56 (- b)}{56 (72)} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.3.1.1.2.2

Cancel the common factor.

$a = \frac{56 (- b)}{56 \cdot 72} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.3.1.1.2.3

Rewrite the expression.

$a = \frac{- b}{72} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = \frac{- b}{72} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = \frac{- b}{72} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.3.1.2

Move the negative in front of the fraction.

$a = - \frac{b}{72} + \frac{11.68}{4032}$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.3.3.3.1.3

Divide $11.68$ by $4032$ .

$a = - \frac{b}{72} + 0.00289682$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = - \frac{b}{72} + 0.00289682$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = - \frac{b}{72} + 0.00289682$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = - \frac{b}{72} + 0.00289682$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

$a = - \frac{b}{72} + 0.00289682$

$6.48 = 512 a + 16 b + 2.4$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4

Replace all occurrences of $a$ with $- \frac{b}{72} + 0.00289682$ in each equation.

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Step 2.3.4.1

Replace all occurrences of $a$ in $6.48 = 512 a + 16 b + 2.4$ with $- \frac{b}{72} + 0.00289682$ .

$6.48 = 512 (- \frac{b}{72} + 0.00289682) + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2

Simplify the right side.

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Step 2.3.4.2.1

Simplify $512 (- \frac{b}{72} + 0.00289682) + 16 b + 2.4$ .

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Step 2.3.4.2.1.1

Simplify each term.

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Step 2.3.4.2.1.1.1

Apply the distributive property.

$6.48 = 512 (- \frac{b}{72}) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.2

Cancel the common factor of $8$ .

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Step 2.3.4.2.1.1.2.1

Move the leading negative in $- \frac{b}{72}$ into the numerator.

$6.48 = 512 (\frac{- b}{72}) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.2.2

Factor $8$ out of $512$ .

$6.48 = 8 (64) (\frac{- b}{72}) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.2.3

Factor $8$ out of $72$ .

$6.48 = 8 \cdot (64 (\frac{- b}{8 \cdot 9})) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.2.4

Cancel the common factor.

$6.48 = 8 \cdot (64 (\frac{- b}{8 \cdot 9})) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.2.5

Rewrite the expression.

$6.48 = 64 (\frac{- b}{9}) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = 64 (\frac{- b}{9}) + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.3

Combine $64$ and $\frac{- b}{9}$ .

$6.48 = \frac{64 (- b)}{9} + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.4

Multiply $- 1$ by $64$ .

$6.48 = \frac{- 64 b}{9} + 512 \cdot 0.00289682 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.5

Multiply $512$ by $0.00289682$ .

$6.48 = \frac{- 64 b}{9} + 1.4831746 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.1.6

Move the negative in front of the fraction.

$6.48 = - \frac{64 b}{9} + 1.4831746 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = - \frac{64 b}{9} + 1.4831746 + 16 b + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.2

To write $16 b$ as a fraction with a common denominator, multiply by $\frac{9}{9}$ .

$6.48 = - \frac{64 b}{9} + 16 b \cdot \frac{9}{9} + 1.4831746 + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.3

Combine $16 b$ and $\frac{9}{9}$ .

$6.48 = - \frac{64 b}{9} + \frac{16 b \cdot 9}{9} + 1.4831746 + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.4

Combine the numerators over the common denominator.

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + 1.4831746 + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.5

Find the common denominator.

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Step 2.3.4.2.1.5.1

Write $1.4831746$ as a fraction with denominator $1$ .

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746}{1} + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.5.2

Multiply $\frac{1.4831746}{1}$ by $\frac{9}{9}$ .

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746}{1} \cdot \frac{9}{9} + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.5.3

Multiply $\frac{1.4831746}{1}$ by $\frac{9}{9}$ .

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746 \cdot 9}{9} + 2.4$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.5.4

Write $2.4$ as a fraction with denominator $1$ .

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746 \cdot 9}{9} + \frac{2.4}{1}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.5.5

Multiply $\frac{2.4}{1}$ by $\frac{9}{9}$ .

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746 \cdot 9}{9} + \frac{2.4}{1} \cdot \frac{9}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.5.6

Multiply $\frac{2.4}{1}$ by $\frac{9}{9}$ .

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746 \cdot 9}{9} + \frac{2.4 \cdot 9}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = \frac{- 64 b + 16 b \cdot 9}{9} + \frac{1.4831746 \cdot 9}{9} + \frac{2.4 \cdot 9}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.6

Combine the numerators over the common denominator.

$6.48 = \frac{- 64 b + 16 b \cdot 9 + 1.4831746 \cdot 9 + 2.4 \cdot 9}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.7

Simplify each term.

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Step 2.3.4.2.1.7.1

Multiply $9$ by $16$ .

$6.48 = \frac{- 64 b + 144 b + 1.4831746 \cdot 9 + 2.4 \cdot 9}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.7.2

Multiply $1.4831746$ by $9$ .

$6.48 = \frac{- 64 b + 144 b + 13.34857142 + 2.4 \cdot 9}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.7.3

Multiply $2.4$ by $9$ .

$6.48 = \frac{- 64 b + 144 b + 13.34857142 + 21.6}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = \frac{- 64 b + 144 b + 13.34857142 + 21.6}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.8

Simplify by adding terms.

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Step 2.3.4.2.1.8.1

Add $- 64 b$ and $144 b$ .

$6.48 = \frac{80 b + 13.34857142 + 21.6}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.2.1.8.2

Add $13.34857142$ and $21.6$ .

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 64 a - 8 b$

Step 2.3.4.3

Replace all occurrences of $a$ in $c = 2.4 - 64 a - 8 b$ with $- \frac{b}{72} + 0.00289682$ .

$c = 2.4 - 64 (- \frac{b}{72} + 0.00289682) - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4

Simplify the right side.

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Step 2.3.4.4.1

Simplify $2.4 - 64 (- \frac{b}{72} + 0.00289682) - 8 b$ .

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Step 2.3.4.4.1.1

Simplify each term.

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Step 2.3.4.4.1.1.1

Apply the distributive property.

$c = 2.4 - 64 (- \frac{b}{72}) - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.2

Cancel the common factor of $8$ .

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Step 2.3.4.4.1.1.2.1

Move the leading negative in $- \frac{b}{72}$ into the numerator.

$c = 2.4 - 64 \frac{- b}{72} - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.2.2

Factor $8$ out of $- 64$ .

$c = 2.4 + 8 (- 8) (\frac{- b}{72}) - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.2.3

Factor $8$ out of $72$ .

$c = 2.4 + 8 \cdot (- 8 \frac{- b}{8 \cdot 9}) - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.2.4

Cancel the common factor.

$c = 2.4 + 8 \cdot (- 8 \frac{- b}{8 \cdot 9}) - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.2.5

Rewrite the expression.

$c = 2.4 - 8 \frac{- b}{9} - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 - 8 \frac{- b}{9} - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.3

Combine $- 8$ and $\frac{- b}{9}$ .

$c = 2.4 + \frac{- 8 (- b)}{9} - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.4

Multiply $- 1$ by $- 8$ .

$c = 2.4 + \frac{8 b}{9} - 64 \cdot 0.00289682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.1.5

Multiply $- 64$ by $0.00289682$ .

$c = 2.4 + \frac{8 b}{9} - 0.18539682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = 2.4 + \frac{8 b}{9} - 0.18539682 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.2

Subtract $0.18539682$ from $2.4$ .

$c = \frac{8 b}{9} + 2.21460317 - 8 b$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.3

To write $- 8 b$ as a fraction with a common denominator, multiply by $\frac{9}{9}$ .

$c = \frac{8 b}{9} - 8 b \cdot \frac{9}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.4

Simplify terms.

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Step 2.3.4.4.1.4.1

Combine $- 8 b$ and $\frac{9}{9}$ .

$c = \frac{8 b}{9} + \frac{- 8 b \cdot 9}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.4.2

Combine the numerators over the common denominator.

$c = \frac{8 b - 8 b \cdot 9}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = \frac{8 b - 8 b \cdot 9}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5

Simplify each term.

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Step 2.3.4.4.1.5.1

Simplify the numerator.

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Step 2.3.4.4.1.5.1.1

Factor $8 b$ out of $8 b - 8 b \cdot 9$ .

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Step 2.3.4.4.1.5.1.1.1

Factor $8 b$ out of $8 b$ .

$c = \frac{8 b (1) - 8 b \cdot 9}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5.1.1.2

Factor $8 b$ out of $- 8 b \cdot 9$ .

$c = \frac{8 b (1) + 8 b (- 1 \cdot 9)}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5.1.1.3

Factor $8 b$ out of $8 b (1) + 8 b (- 1 \cdot 9)$ .

$c = \frac{8 b (1 - 1 \cdot 9)}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = \frac{8 b (1 - 1 \cdot 9)}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5.1.2

Multiply $- 1$ by $9$ .

$c = \frac{8 b (1 - 9)}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5.1.3

Subtract $9$ from $1$ .

$c = \frac{8 b \cdot - 8}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5.1.4

Multiply $- 8$ by $8$ .

$c = \frac{- 64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = \frac{- 64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.4.4.1.5.2

Move the negative in front of the fraction.

$c = - \frac{64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = - \frac{64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = - \frac{64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = - \frac{64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

$c = - \frac{64 b}{9} + 2.21460317$

$6.48 = \frac{80 b + 34.94857142}{9}$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5

Solve for $b$ in $6.48 = \frac{80 b + 34.94857142}{9}$ .

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Step 2.3.5.1

Rewrite the equation as $\frac{80 b + 34.94857142}{9} = 6.48$ .

$\frac{80 b + 34.94857142}{9} = 6.48$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.2

Multiply both sides by $9$ .

$\frac{80 b + 34.94857142}{9} \cdot 9 = 6.48 \cdot 9$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.3

Simplify.

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Step 2.3.5.3.1

Simplify the left side.

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Step 2.3.5.3.1.1

Cancel the common factor of $9$ .

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Step 2.3.5.3.1.1.1

Cancel the common factor.

$\frac{80 b + 34.94857142}{9} \cdot 9 = 6.48 \cdot 9$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.3.1.1.2

Rewrite the expression.

$80 b + 34.94857142 = 6.48 \cdot 9$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$80 b + 34.94857142 = 6.48 \cdot 9$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$80 b + 34.94857142 = 6.48 \cdot 9$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.3.2

Simplify the right side.

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Step 2.3.5.3.2.1

Multiply $6.48$ by $9$ .

$80 b + 34.94857142 = 58.32$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$80 b + 34.94857142 = 58.32$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$80 b + 34.94857142 = 58.32$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.4

Solve for $b$ .

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Step 2.3.5.4.1

Move all terms not containing $b$ to the right side of the equation.

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Step 2.3.5.4.1.1

Subtract $34.94857142$ from both sides of the equation.

$80 b = 58.32 - 34.94857142$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.4.1.2

Subtract $34.94857142$ from $58.32$ .

$80 b = 23.37142857$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$80 b = 23.37142857$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.4.2

Divide each term in $80 b = 23.37142857$ by $80$ and simplify.

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Step 2.3.5.4.2.1

Divide each term in $80 b = 23.37142857$ by $80$ .

$\frac{80 b}{80} = \frac{23.37142857}{80}$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.4.2.2

Simplify the left side.

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Step 2.3.5.4.2.2.1

Cancel the common factor of $80$ .

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Step 2.3.5.4.2.2.1.1

Cancel the common factor.

$\frac{80 b}{80} = \frac{23.37142857}{80}$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.4.2.2.1.2

Divide $b$ by $1$ .

$b = \frac{23.37142857}{80}$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$b = \frac{23.37142857}{80}$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$b = \frac{23.37142857}{80}$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.5.4.2.3

Simplify the right side.

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Step 2.3.5.4.2.3.1

Divide $23.37142857$ by $80$ .

$b = 0.29214285$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$b = 0.29214285$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$b = 0.29214285$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$b = 0.29214285$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

$b = 0.29214285$

$c = - \frac{64 b}{9} + 2.21460317$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.6

Replace all occurrences of $b$ with $0.29214285$ in each equation.

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Step 2.3.6.1

Replace all occurrences of $b$ in $c = - \frac{64 b}{9} + 2.21460317$ with $0.29214285$ .

$c = - \frac{64 (0.29214285)}{9} + 2.21460317$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.6.2

Simplify the right side.

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Step 2.3.6.2.1

Simplify $- \frac{64 (0.29214285)}{9} + 2.21460317$ .

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Step 2.3.6.2.1.1

Simplify each term.

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Step 2.3.6.2.1.1.1

Multiply $64$ by $0.29214285$ .

$c = - \frac{18.69714285}{9} + 2.21460317$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.6.2.1.1.2

Divide $18.69714285$ by $9$ .

$c = - 1 \cdot 2.07746031 + 2.21460317$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.6.2.1.1.3

Multiply $- 1$ by $2.07746031$ .

$c = - 2.07746031 + 2.21460317$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

$c = - 2.07746031 + 2.21460317$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.6.2.1.2

Add $- 2.07746031$ and $2.21460317$ .

$c = 0.13714285$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

$c = 0.13714285$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

$c = 0.13714285$

$b = 0.29214285$

$a = - \frac{b}{72} + 0.00289682$

Step 2.3.6.3

Replace all occurrences of $b$ in $a = - \frac{b}{72} + 0.00289682$ with $0.29214285$ .

$a = - \frac{0.29214285}{72} + 0.00289682$

$c = 0.13714285$

$b = 0.29214285$

Step 2.3.6.4

Simplify the right side.

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Step 2.3.6.4.1

Simplify $- \frac{0.29214285}{72} + 0.00289682$ .

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Step 2.3.6.4.1.1

Simplify each term.

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Step 2.3.6.4.1.1.1

Divide $0.29214285$ by $72$ .

$a = - 1 \cdot 0.00405753 + 0.00289682$

$c = 0.13714285$

$b = 0.29214285$

Step 2.3.6.4.1.1.2

Multiply $- 1$ by $0.00405753$ .

$a = - 0.00405753 + 0.00289682$

$c = 0.13714285$

$b = 0.29214285$

$a = - 0.00405753 + 0.00289682$

$c = 0.13714285$

$b = 0.29214285$

Step 2.3.6.4.1.2

Add $- 0.00405753$ and $0.00289682$ .

$a = - 0.00116071$

$c = 0.13714285$

$b = 0.29214285$

$a = - 0.00116071$

$c = 0.13714285$

$b = 0.29214285$

$a = - 0.00116071$

$c = 0.13714285$

$b = 0.29214285$

$a = - 0.00116071$

$c = 0.13714285$

$b = 0.29214285$

Step 2.3.7

List all of the solutions.

$a = - 0.00116071, c = 0.13714285, b = 0.29214285$

Step 2.4

Calculate the value of $y$ using each $x$ value in the table and compare this value to the given $y$ value in the table.

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Step 2.4.1

Calculate the value of $y$ such that $y = a x^{2} + b$ when $a = - 0.00116071$ , $b = 0.29214285$ , $c = 0.13714285$ , and $x = 8$ .

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Step 2.4.1.1

Simplify each term.

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Step 2.4.1.1.1

Raise $8$ to the power of $2$ .

$y = - 0.00116071 \cdot 64 + (0.29214285) \cdot (8) + 0.13714285$

Step 2.4.1.1.2

Multiply $- 0.00116071$ by $64$ .

$y = - 0.07428571 + (0.29214285) \cdot (8) + 0.13714285$

Step 2.4.1.1.3

Multiply $0.29214285$ by $8$ .

$y = - 0.07428571 + 2.33714285 + 0.13714285$

Step 2.4.1.2

Simplify by adding numbers.

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Step 2.4.1.2.1

Add $- 0.07428571$ and $2.33714285$ .

$y = 2.26285714 + 0.13714285$

Step 2.4.1.2.2

Add $2.26285714$ and $0.13714285$ .

$y = 2.4$

Step 2.4.2

If the table has a quadratic function rule, $y = y$ for the corresponding $x$ value, $x = 8$ . This check does not pass, since $y = 2.4$ and $y = 2.4$ . The function rule can't be quadratic.

$2.4 \neq 2.4$

Step 2.4.3

Since $y \neq y$ for the corresponding $x$ values, the function is not quadratic.

The function is not quadratic

Step 3

There are no values of $a$ , $b$ , or $c$ in the equations $y = a x + b$ or $y = a x^{2} + b x + c$ that work for every pair of $x$ and $y$ .

The table does not have a function rule that is linear or quadratic.