Question

Which of the following are exponential functions? Select all correct answers.

Answer 1

Exponential function by definition is of the form:

`f(x)=ab^x`

Therefore the options that are not exponential are:

`f(x)=-9x^(11),k(x)=-3x^7`

So f(x) and k(x) are not exponential.

The options that are exponential are:

`g(x)=9(5.44)^x,h(x)=6((1)/(7))^x,j(x)=2(5)^x`

So the functions g(x),h(x) and j(x) are exponential.