# How do you find the slope and y intercept for x+2y= -8?

May 27, 2015

The slope is $- \frac{1}{2}$ and the y-intercept is $- 4$.

Problem: Find the slope and y-intercept for $x + 2 y = - 8$.

Convert the equation into the slope-intercept form.

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

$x + 2 y = - 8$

Subtract $x$ from both sides of the equation.

$2 y = - x - 8$

Divide both sides of the equation by $2$.

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

$m = - \frac{1}{2}$

$b = - 4$

graph{y=-1/2x-4 [-31.87, 34.4, -7.3, 5.3]}