Question

Find the slope between the following points: (-9, 10) (0, -2)

Answer 1

slope = (y2-y1)/(x2-x1)
slope = (10+2)/(-9-0)
slope = -12/9
slope = -4/3

answer
-4/3

Answer 2

the slope is the change in Y over the change in x

change in y = -2 - 10 = -12

change in x = 0- -9 = 9

slope = -12/9 which reduces to -4/3