Question

given that the function f(x)=x^2-6x has domain [3,infinite), which of the following functions is the inverse of f(x)?

Answer 1

solve
\[x=y^2-6y\] in a few steps

Answer 2

that is, solve for \(y\)

Answer 3

you know how to do that?

Answer 4

"no" is a fine answer, just asking

Answer 5

i think i do.. would it be y=3+sqrt9+x

Answer 6

maybe let me check

Answer 7

\[3+\sqrt{x+9}\] yes

Answer 8

plus the radical because of the domain, otherwise it would be \(\pm\) which is not a function

Answer 9

okay so then whatttt

Answer 10

then go have a beer you are done

Answer 11

\[f^{-1}(x)=\sqrt{x+9}+3\]

Answer 12

or however you need to write it

Answer 13

hahahaha ill take you up on that in 3 years. ill post another question soon

Answer 14

k

Answer 15

that is a long time before my next beer though