Question

Which function represents exponential decay?

f(x) = One-half(2)x
f(x) = Three-fourths(Negative one-fifth)x
f(x) = 3(Seven-halves)x
f(x) = 2(Two-thirds)x

Answer 1

D

Step-by-step explanation:

EDGE2020

Answer 2

f(x) = 2(Two-thirds)x


Step-by-step explanation:
Exponential functions are in the form
y= ab^x If a is positive and b is greater than 1, then it is exponential growth. If a is positive and b is less than 1 but greater than 0, then it is exponential decay.