what is the slope and y-intercept of (-6,0) and (2,-2)
slope = change in rise / change in run
slope = (0 - -2) / (-6 - 2)
slope = (2) / (-8)
slope = -1/4
y = mx + b, where m is slope and b is the y-intercept.
Just plug in what you know and solve for b.
0 = (-1/4)(-6) + b
-b = 3/2
b = -3/2
