Finding Inverse of a function, due in 1 hour :)

[warsatan]

just want to say hello, this is my first post here and i have this problem due in a bit. thanks if you can help out.

f(x) = (x+2)/x find the inverse, thanks again.

 

[stapel]

The usual process for finding an inverse is as follows:

. . . . .1) Rename "f(x)" as "y".
. . . . .2) Solve for "x=".
. . . . .3) Switch "x" and "y".
. . . . .4) Rename the new "y" as "f^-1(x)".

So you'd start like this:

. . . . .f(x) = (x + 2)/x
. . . . .y = (x + 2)/x
. . . . .xy = x + 2
. . . . .xy - x = 2
. . . . .x(y - 1) = 2

...and so forth.

Eliz.

 

[warsatan]

wow, that was quick, i got it now, thanks a lot for your help, this forum is awesome