Slope intercept form is y=mx+b where m represents the slope and b is the y- intercept. From the graph we can see the y intercept is -4 and the slope is 2.
**To find the slope you find 2 points in the line and use the formula y2-y1 / x2-x1
(2,0) (0,-4) -4-0 / 0-2 = -4 / -2 = 2**
Y=mx+b —> y=2x-4