Question

For the function f(x) = x + 9, find (f o f-1)(5)




A. 0


B. 4


C. 6


D. 10
Its not A!

Answer 1

@digitallogic @DJ♬Øϟϟ¥ @Marv93w

Answer 2

the answer is not there

Answer 3

but it 5

Answer 4

this is what they gave me to chose from ?

Answer 5

This is a composition of functions.

First you need to find \(f^{-1}(x)\). Then you need to find \(f^{-1}(5)\). The answer of that you need to plug into \(f(x)\).

Answer 6

The answer is 5; it's not there...

Answer 7

i know shay had the same problem

Answer 8

lol yeah im kinda helping her lol @Marv93w

Answer 9

So, basically, your teacher is really really stupid for making this test.

Answer 10

That's the only answer for this problem.