Question

Let
f(x) = 5 - x

f^{-1}( x ) =

How do I solve this??

Answer 1

You're after the inverse function of f(x)?
Just write it out like this
y = 5 - x
then solve as x(y):
x = 5 - y
that, I believe is the inverse :)

Answer 2

So f^-1(x) = 5 - y

Answer 3

Inverse function means replace every x with y, and everything y with x.
So if your equation is
y=5-x
your inverse is
x=5-y
Then solve for y and you get the inverse:)

Answer 4

Ohhh! I see thank you!!!

Answer 5

http://www.wolframalpha.com/input/?i=inverse+y%3D5-x