Question

Sophia invested some money in a bank at a fixed rate of interest compounded annually. The equation below shows the value of her investment after x years:

f(x) = 500(1.05)x

What was the average rate of change of the value of Sophia's investment from the second year to the fourth year?

Answer 1

14.13 dollars per year
28.25 dollars per year
50.00 dollars per year
56.50 dollars per year

Answer 2

if you multiply 500*1.05. how much would you get?
that is your investment for one year. and since it's asking you for the investment of two years. from year 2 to 4. multiply that amount by two. and you get ur answer

Answer 3

So do i multiply it by 2 or 4? @beehive