Question

Which of the following are exponential functions? Select all correct answers.a. f(x)=5x4b. g(x)=5(17)xc. h(x)=11xd. j(x)=6(2.56)xe. k(x)=4(6)x

Answer 1

I'm going to state what I think that the functions were and then answer:

a.
`f(x)=5x^4` is not exponential. The variable is not an exponent.

b.
`g(x)=5(17)^x` IS. The variable IS an exponent.

c.
`h(x) =11x` is not. But if you meant
`h(x)=11^x` then it is. Is the variable an exponent? If so, then the answer is yes.

d.
`j(x)=6(2.56)^x` IS, assuming again that the variable is an exponent.

e
`k(x) = 4(6)^x` IS, assuming again that the variable is an exponent.

Now, if any of the x's I wrote as exponents are not exponents, then those are not exponential functions.