Question

Identify the initial amount a and the rate of growthr (as a percent) of the exponential function y = 25(1.2)t Evaluate the function

when t=5. Round your answer to the nearest tenth.
a =
r=%
When I = 5, y =

Answer 1

y = 62.21

a = 25

r = 1.2 - 1 from (1 + r) part of the formula = .2 or 20%

Explanation:

y = 62.21

y = final amount

y = a(1+r)^t