Question

what is f(x) if f-1(x)=log2(x+1)?

Answer 1

do you know how to get an inverse relation of a function?
by simply swapping about the variables ?

Answer 2

keep in mind that if f(x) has an inverse of g(x), then g(x) has f(x) as its inverse

Answer 3

i still do not understand

Answer 4

well, have you covered logarithms yet?

Answer 5

no

Answer 6

I'd think it'd be a good time to cover them first then -> http://www.youtube.com/watch?v=mQTWzLpCcW0