Y=f (x) = 4^x

Find f (x) when x = 1/2

1) Plug in the equation: 4^ (1/2)

2) Now going into this problem, we should know a fraction exponent is the same as taking the root of a number. 1/2 would be a square root, 1/3 would be a cubed root, and so on.

3) Saying 4^ (1/2) is the same as saying the square root of 4.

Answer:

2