Answer:
D
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here (a, b ] = [ 1, 3 ], thus
f(b) = f(3) = 5 ← from graph
f(a) = f(1) = - 3 ← from graph
average rate of change = = = 4 → D
Answer: the answer is 45.5, which the second bubble down.
1/8
-5