Question

Which function below represents exponential decay? ƒ( x) = 2(1.3) x ƒ( x) = 0.5(2) x ƒ( x) = (-3) x ƒ( x) = 4(0.25) x

Answer 1

f(x) = 4 (0.25)ˣ

Explanation:

If the growth factor is between 0 and 1, the function is exponential decay.

If the growth factor is greater than 1, the function is exponential growth.