Respuesta :

Answer:

A) f(x) = 4•(2)^x

Step-by-step explanation:

When substituting in the values of x and y into the functions, the only function that works for both (0,4) and (1,8) is A.

8 = 4•(2)^1 = 4 x 2 = 8

4 = 4•(2)^0 = 4 x 1 = 4