Question

Find the function f(x) - x + 9,

Answer 1

@ganeshie8

Answer 2

Was there something before in the question that tells you what f(x) is?

Answer 3

nope :/

Answer 4

Could you take a screenshot/pic of the entire page that has this question and post it?

Answer 5

yes ok

Answer 6

That does not add much to the previous link. It says question 18 of 20. Is there an f(x) mentioned before earlier that says f(x) = something and use this for the following questions?

Answer 7

ohh hold on

Answer 8

this one

Answer 9

Ok, so there are a couple of typos in question 18. It should be:
FOR the function (and not Find the function).
For the function f(x) = x + 9 (and not f(x) - x + 9).

So they are asking for (f o f^-1)(5).
(f o f^-1)(5) = f(f^-1(5))
If you take x, then find f^-1(x) and then find f(f^-1(x)) you will end up with what you started with, namely, x

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

Answer 10

aahh okay thank, that means 19 has typos ~_~

Answer 11

It says question 18 of 20 in this link which has two typos:
http://assets.openstudy.com/updates/attachments/5373ce09e4b02d141365809d-buttercup16-1400101781567-math.jpg

Answer 12

The word Find should be replaced by For
and f(x) - should be f(x) =

Answer 13

oh ok! thanks :)