Question

Over which interval does f(x) have a negative average rate of change?

A.[3,8]
B.[-9,-3]
C.[3,5]
D.[-9,-8]

Answer 1

Uh...I have no clue. Sorry. :(

Answer 2

It is A

From the x-value of 3 to the x-value of 8, the y-value goes down from 3 to -6