Which of the following functions grows at the same rate as ex as x goes to infinity?

Question

Which of the following functions grows at the same rate as e^x as x goes to infinity?

A	ex+3
B	e3x
C	e2x
D	e-x

Answer 1

In the limit A is approximately e^x because 3 is negligible against infinity.

B would be increasing 3 times faster than A and 3/2 time faster than C

D is decaying to zero