Question

Given the function f (x) = 630(.64)x, determine if this function models exponential growth or decay and identify the growth or decay rate.

1. Decay, 64%
2. Growth, 64%
3. Decay, 36%
4. Growth, 36%

Answer 1

Decay, 36%

Explanation:

.64 is less that 1, so it is a decay. You find the rate by using the equation 1 - .64 = .36 or 36%.