Pre-Algebra Examples

$x - 2 y + 8 = 0$

Step 1

The slope-intercept form is $y = m x + b$ , where $m$ is the slope and $b$ is the y-intercept.

$y = m x + b$

Step 2

Rewrite in slope-intercept form.

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Step 2.1

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

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Step 2.1.1

Subtract $x$ from both sides of the equation.

$- 2 y + 8 = - x$

Step 2.1.2

Subtract $8$ from both sides of the equation.

$- 2 y = - x - 8$

Step 2.2

Divide each term in $- 2 y = - x - 8$ by $- 2$ and simplify.

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Step 2.2.1

Divide each term in $- 2 y = - x - 8$ by $- 2$ .

$\frac{- 2 y}{- 2} = \frac{- x}{- 2} + \frac{- 8}{- 2}$

Step 2.2.2

Simplify the left side.

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Step 2.2.2.1

Cancel the common factor of $- 2$ .

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Step 2.2.2.1.1

Cancel the common factor.

$\frac{- 2 y}{- 2} = \frac{- x}{- 2} + \frac{- 8}{- 2}$

Step 2.2.2.1.2

Divide $y$ by $1$ .

$y = \frac{- x}{- 2} + \frac{- 8}{- 2}$

Step 2.2.3

Simplify the right side.

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Step 2.2.3.1

Simplify each term.

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Step 2.2.3.1.1

Dividing two negative values results in a positive value.

$y = \frac{x}{2} + \frac{- 8}{- 2}$

Step 2.2.3.1.2

Divide $- 8$ by $- 2$ .

$y = \frac{x}{2} + 4$

Step 2.3

Reorder terms.

$y = \frac{1}{2} x + 4$