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

Apr 4, 2018

Slope = -1
y-intercept = -2

#### Explanation:

To find the slope and intercept of an equation you have to put it in Slope-Intercept Form, which looks like: $y = m x + b$ with $m$ being your slope and $b$ being your y-intercept.

To get your equation into Slope-Intercept Form, you must first subtract the $x$ so that the $y$ is alone on its side of the equal side. Your equation now will look like this:

$y = - x - 2$

Your equation is now in Slope-Intercept Form. This means that your $m$ value (your slope) is in front of the $x$ and your $b$ value (your y-intercept) is behind it. This makes your $b$ value $- 2$, but there's no number for $m$. The equation above is actually the simplified version of the equation $y = \left(- 1\right) x - 2$. Whenever you see a $-$ sign, imagine an invisible $1$ along with it. So your $m$ value is actually a $- 1$.

To summarize:

Slope = $- 1$
y-intercept = $- 2$