Question

Four functions are shown:

y=6x2


y=9x


y=−3x2+2


y=7x


(1 point)
Write the function that represents an exponential function. $$

Answer 1

y = 9^x

Reason: an exponential function has the variable in the exponent (general form y = a·b^x). Of the choices, y = 9^x is the exponential one.