Answer:
-4 units per unit
Step-by-step explanation:
As x increases from a = -2 to b = 2 (a change of 4 units), f(x) changes from f(-2) = 25 to f(2) = 9, a decrease of 16. Thus, the average rate of change of f(x) on the interval [-2, 2] is:
-16
---------- = -4 units per unit.
4
