Which of the following functions represent exponential growth?
a. f(x)=.001(1.77)^x
b. f(x)=2(1.5)^x/2
c. f(x)=5(0.5)^-x
d. f(t)=5e^-t
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An exponential growth function is represented by
.
The given functions can be written as,
A)
B)
C)
D) .
So the function violates the conditions for an exponential growth function. It is an exponential decay function.
The correct choices are (A), (B), (C).
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