Functions of the form y = abx, where b > 0 and b ≠ 0, are called functions.

Exponential function.

Step-by-step explanation:

We are given that a function of the  form

Where and b>0

Exponential function: The function  is of the form

Where b is a  positive constant and greater than 0 and x is any real number.

The given function satisfied the define of exponential function.

Hence, the function of the form

Where b>0 and are called exponential function.

c. (3,2,6) is the answer.