Question

In the equation `f(x) = (1/2)^x`, what is `f(x)` when `x=3`?

Answer 1

`f(3)=1/8`

Explanation:

`f(x)=(1/2)^x`

To find `f(x)` when `x=3`, substitute 3 in place of `x`.

Simple.

`f(3) = (1/2)^3`

`= 1/2xx1/2xx1/2`

`=1/8`