Answer:
Find slope intercept form
Step-by-step explanation:
When you have 2 points, you can find the slope of the line.
Use the y-intercept as a point like (0, y) and the given point (4, 90) to find the slope.
Using this:
[tex]m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
Knowing that y=mx+b, plug in either set of points and the slope as m to find b.
Or, because you are already given the y-intercept and b is the y-intercept, fill in b with that y coordinate.
Now rewrite in slope intercept form (y= mx+b), fill in m and b, and you're done!
