Question

Given:

Answer 1

Given: \[f(x)=\frac{ ax+b }{ cx-a }\] where a,b, and c are integers, find \[f ^{-1}(x)\]

Answer 2

@dan815 @e.mccormick @Kainui

Answer 3

@Luigi0210

Answer 4

You're gonna have to switch the variables and solve for y again:

\(\Large x=\frac{ay+b}{cy-a}\)

Answer 5

i tried and i kept getting the same thing

Answer 6

What did you keep getting?

Answer 7

oh wait its actually \[f(x)=\frac{ ax+b }{ cx-a \prime } \]

Answer 8

the bottom a is a prime

Answer 9

if that helps

Answer 10

oh wait the a and the a prime switch

Answer 11

is that it though? is that f inverse of x?

Answer 12

Yea, usually that's all that's needed for finding \(\ f^{-1} (x) \)

I kind of have to go though. If you're not sure you can ask others for clarification @Squirrels ;) @Kainui is pretty great :P

Answer 13

ok thanks

Answer 14

@abb0t

Answer 15

@Squirrels what do you think