Which equation represents exponential growth? a. f ( x ) = 4 ( 0 . 07 ) x b. f ( x ) = 2 ( 0 . 44 ) x c. f ( x ) = 1 2 ( 6 ) x d. f ( x ) = 7 ( 1 2 ) x\

Option C.

Step-by-step explanation:

The general form of exponential growth function is

where, a is initial values and b is growth factor, b>1.

The given function are

In functions 1,2, and 4 the values of b are 0.07, 0.44 and 1/2 respectively. The values of b are less than 1. It means they represent exponential decay.

In function 3, the values of b is 6, which is greater than 1. It means it represent exponential growth.

Therefore, the correct option is C.