Question

What is the value of f(4) in the function below? f(x) = • 2x A. 4 B. 16 C. 2 D. 8

Answer 1

f4=4

Explanation:

F(x)=1/4•2^x

Let x = 4

F(4)=1/4•2^4

= 1/4 * 2^4

= 1/4 *16

= 4

Answer 2

Explanation:

given f(x) = 2x

f(4) =?

f(4) = 2(4) = 8 (D)