PLEASE HELP FAST!! Please don't answer if you don't know.Which function represents a reflection of f(x) = 2^x?

Given data:
The given function is y=2^x.
To get the reflection of the given function substitute -x for x in the function.
[tex]y^{\prime}=2^{-x}[/tex]Thus, the reflection of the given function is y=2^(-x), so the last option is correct.