Exponential Functions

13. Inverse, Exponential, & Logarithmic Functions / Exponential Functions / Problema 1

Problema 1

Which of the following is an exponential function?

$f (x) = 5^{x}$

$f (x) = x^{5}$

$f (x) = 1^{x}$

$f (x) = (- 3)^{x}$