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

Answer:

$\frac{f(12)- f(8)}{12-8}$

Step-by-step 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

$\frac{f(b)- f(a)}{b-a}$

Given interval is [8,12]

a= 8  and b = 12

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

$\frac{f(12)- f(8)}{12-8}$

option 3 is correct