Question

A quadratic function is graphed below. Which is the best estimate for the average rate of change on the interval 0 < x < 8?

A: -3
B: -2
C: 2
D: 3

Answer 1

A. -3

Explanation:

f(0) = 0

f(8) = -24

m = [f(8) − f(0)] / (8 − 0)

m = (-24 − 0) / 8

m = -3