Question

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

Answer 1

Don't know why y'all are giving the other guy 1 star because he didn't even give the formulas. I'm taking the test anyways and the answer is C.
`(f\left(12\right)-f\left(8\right))/(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

`(f\left(b\right)-f\left(a\right))/(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\left(12\right)-f\left(8\right))/(12-8)`

So Option C