Which of the following is an example of an exponential function?(1 point)

Responses

f(x)=−(−5)x
f of x is equal to negative negative 5 to the x th power

f(x)=x2+1
f of x is equal to x over 2 plus 1

f(x)=x−−√
f of x is equal to square root of x

f(x)=x3