This is the result in a graph that shows exponential growth.
a. f(x) = 0.4(3)x
b. f(x) = 3(0.5)x
c. f(x) = 0.8(0.9)x
d. f(x) = 0.9(5)−x

"f(x) = 0.4(3)x" is the one among the following choices given in the question that is the result in a graph that shows exponential growth. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has actually come to your desired help.