Question

Which equation would represent exponential decay?

a. f (x) = 4(1.03)^x
b. f (x) = -2x - 5
c. f (x) = -3(1.02)^x
d. f (x) = 2(.87)^x

Answer 1

The correct is D hshaisbd

Answer 2

D

Explanation:

The .87 represents that the new value is 87% of the previous value, thus decaying exponentially. B decays linearly and the other two are exponential growth functions.