Question

Need the answer for the function as stated in the photo

Answer 1

The average rate of change of
`f` over an interval
`[a,b]` is the difference quotient

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

Over the interval
`3\le x\le5`, we have

`(f(5) - f(3))/(5 - 3) = (27 - 3)/(5 - 3) = \frac{24}2 = \boxed{12}`