Question

Please help me with this ​

Answer 1

Answer: C

Explanation:

The formula to find average rate of change is
`(f(b)-f(a))/(b-a)`. Since the problem is asking for the average rate of change from the second to fifth year, we plug in a=2 and b=5.

`(f(5)-f(2))/(5-2)`

f(5)=420.4

f(2)=408.04

`(420.4-408.04)/(5-2)=4.12`

Now, we get 4.12 dollars per year for the average rate of change.