Question

REALLY NEED HELP ON THIS PROBLEM

image attached

Answer 1

average rate of change = - 0.5

Explanation:

the average rate of change of f(x) in the closed interval [ a, b ] is

`(f(b)-f(a))/(b-a)`

here the closed interval is [ 1, 3 ] , then

f(b) = f(3) = 4 ← point (3, 4 ) on graph

f(a) = f(1) = 5 ← point (1, 5 ) on graph

Then

average rate of change =
`(4-5)/(3-1)` =
`(-1)/(2)` = - 0.5