Question

Which formula gives the average rate of change of f(x) over the interval [8,12]?

Answer 1

I think the answer is C hope this would help you

Answer 2

`(f(12)- f(8))/(12-8)`

Explanation:

the average rate of change of f(x) over the interval [8,12]

The formula for average rate of change of f(x) over the interval [a,b] is

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

Given interval is [8,12]

a= 8 and b = 12

So the average rate of change over the interval [8,12] is

`(f(12)- f(8))/(12-8)`

option 3 is correct