Question

Which is an exponential decay function?

f(x) = 0.2(5/3) x
f(x) = –3.1x
f(x) = 10x
f(x) = −2(0.7)x

Answer 1

f(x) = −2(0.7)x D.

on edge 2020-2021

Answer 2

The answer is f(x) = -2(0.7)^x that is the correct answer, I just did the question and got it right.