# How do you find slope and intercepts to graph y=4x+9?

Apr 13, 2018

Slope: $4$
Y-intercept: $9$
X-intercept: $- 2.25$ or $\left(- \frac{9}{4}\right)$

#### Explanation:

$y = 4 x + 9$ is in the form $y = m x + b$, so the slope ($m$) is $4$ and the Y-intercept ($b$) is $9$.
To find the X-intercept, set $y$ to $0$.
$0 = 4 x + 9$ Subtract $9$ from each side
$4 x = - 9$ Divide by $4$
$x = - \frac{9}{4}$ or $x = - 2.25$