Algebra Examples

$f (x) = 9 x$

Step 1

Write $f (x) = 9 x$ as an equation.

$y = 9 x$

Step 2

Choose any value for $x$ that is in the domain to plug into the equation.

Step 3

Choose $0$ to substitute in for $x$ to find the ordered pair.

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Step 3.1

Remove parentheses.

$y = 9 (0)$

Step 3.2

Multiply $9$ by $0$ .

$y = 0$

Step 3.3

Use the $x$ and $y$ values to form the ordered pair.

$(0, 0)$

Step 4

Choose $1$ to substitute in for $x$ to find the ordered pair.

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Step 4.1

Remove parentheses.

$y = 9 (1)$

Step 4.2

Multiply $9$ by $1$ .

$y = 9$

Step 4.3

Use the $x$ and $y$ values to form the ordered pair.

$(1, 9)$

Step 5

Choose $2$ to substitute in for $x$ to find the ordered pair.

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Step 5.1

Remove parentheses.

$y = 9 (2)$

Step 5.2

Multiply $9$ by $2$ .

$y = 18$

Step 5.3

Use the $x$ and $y$ values to form the ordered pair.

$(2, 18)$

Step 6

These are three possible solutions to the equation.

$(0, 0), (1, 9), (2, 18)$

Step 7

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