Question

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

f(x)=x^2

f of x is equal to x squared

g(x)=(−1)^x

g of x is equal to negative 1 to the x th power

h(x)=17^x

h of x is equal to 17 to the x th power

j(x)=2^3−x

j times x is equal to 2 cubed minus x

Answer 1

h(x) = 17^x

Reason: An exponential function has a constant positive base and the variable in the exponent. 17^x fits that. f(x)=x^2 is a polynomial, g(x)=(-1)^x has a negative base (not a real-valued exponential for noninteger x), and j(x)=2^3 − x = 8 − x is linear.