Question

Identify the initial amount a and the rate of decay r (as a percent) of the exponential function y = 575(1 – 0.6)'. Evaluate the

function when t=3. Round your answer to the nearest tenth.
A=
R=%
When t=3, y=

Answer 1

Initial amount is the first value in the equation = 575

The rate is inside the parentheses and is added/ subtracted from 1.

The value inside the parentheses is 0.6 which is 60 % decay

Replace t with 3 and solve:

575 (1-0.6)^3 = 36.8