Answer
y=2x-3
Work Step by Step
The point-slope form is y=mx+b. The formula for slope is m=$\frac{y2-y1}{x2-x1}$
Using points from the graph (2,1)(0,-3), the slope is m=$\frac{1-(-3)}{2-0}$=$\frac{4}{2}$ =2.
Using the point-slope formula and (2,1):
1=2(2)+b
1=4+b
b=-3
Plug these values into the point-slope form so the equation is y=2x-3.
