# How do you find the slope and y-intercept for the line y=-x?

Mar 17, 2018

See a solution process below:

#### Explanation:

We can easily write this in slope-intercept form. The slope-intercept form of a linear equation is: $y = \textcolor{red}{m} x + \textcolor{b l u e}{b}$

Where $\textcolor{red}{m}$ is the slope and $\textcolor{b l u e}{b}$ is the y-intercept value.

$y = - x$ becomes:

$y = \textcolor{red}{- 1} x + \textcolor{b l u e}{0}$

Therefore:

• The slope is: $\textcolor{red}{m = - 1}$
• The $y$-intercept is: $\textcolor{b l u e}{b = 0}$ or $\left(0 , \textcolor{b l u e}{0}\right)$