Question 875052
We want to find y0 such that (-4,y0) is on the line. Note that -4 is 1/3 of the way from -8 to 4, and 4 is 1/3 of the way from 5 to 2, so (-4,4) is on the line.


Note that if x = -4, y = 4. So 4 = m(-4) + b --> b - 4m = 4.