# How do you find the slope given y= -4x +9?

Mar 18, 2018

$\text{slope } = - 4$

#### Explanation:

$\text{the equation of a line in "color(blue)"slope-intercept form}$ is.

•color(white)(x)y=mx+b

$\text{where m is the slope and b the y-intercept}$

$y = - 4 x + 9 \text{ is in this form}$

$\text{with slope m } = - 4$

Mar 18, 2018

$m = - 4$.

#### Explanation:

We write it in the form of $y = m x + c$ where $m$ is our slope.
Since, $y = - 4 x + 9$ is already in the form $y = m x + c$, we just compare these two.
We get, $m = - 4$.

Hope this helps :)