Question

Which of the following functions shown in the table below could not be an exponential function?

Check all that apply.

Answer 1

x -3 -2 -1 0 1 2 3
f(x) 0.67 /1.11 /1.82 /3/ 5.95 /9.15/14.45
g(x) 0.125 /0.25 /0.5 /1/2/4 /8
h(x) 0.25/ 0.5/0.75/1/1.25/1.5/1.75
k(x) 64/16/4/1/0.25/0.0625/0.0156
A. k(x)
B. h(x)
C. f(x)
D. g(x)

Answer 2

g(x) and k(x) are so both f(x) and h(x) could NOT be exponential functions. just in case anyone needs this in the future.