# Graphing lines from slope-intercept form review

CCSS Math: HSF.IF.C.7a
Slope intercept form is y=mx+b, where m is slope and b is the y-intercept. We can use this form of a linear equation to draw the graph of that equation on the x-y coordinate plane.
Slope intercept form is $y=mx+b$, where $m$ is slope and $b$ is the $y$-intercept.
Slope-intercept form is nice when you're drawing graphs.
For example, imagine we're given the equation $y=2x+7$ and asked to graph it.
Straight from the equation, we know the $y$-intercept is $7$.
And we know the slope is $2$.
$\text{Slope}=\dfrac{\Delta y}{\Delta x}=\dfrac{2}{1}=2$
So, for every one unit we go to the right, we must go up two units:
Here is our final graph:
Want to learn more about graphing equation from slope-intercept form? Check out this video.

## Practice

Problem 1
Graph the following equation.
$\qquad y=-4x-1$
Want more practice? Check out this exercise.