Question

Find f(g(x)).
f(x) = x-8 / x+7
g(x) = -7x-8 / x-1

Answer 1

Still working that problem, lol was helping the others :D

Answer 2

This is what i have so far...

56x+64
--------
-49x-56

Answer 3

------------ equals divide symbol

Answer 4

Now to find the inverse function you have to do g(f(x))..

Answer 5

This is a hard problem :D

Answer 6

I know

Answer 7

sry

Answer 8

Are u still stuck?

Answer 9

Yes

Answer 10

Hmmm

Answer 11

Check this website out: http://www.purplemath.com/modules/fcnops.htm

Answer 12

it should help

Answer 13

I got it.

Answer 14

Alright!

Answer 15

Ok, heres the work:

Answer 16

-7x-8
------ -8
x-1
---------
-7x-8
------ + 7
x-1

Answer 17

Then distribute

Answer 18

If you get stuck then refer back to the website. :)

Answer 19

Thanks*((:

Answer 20

Your welcome Lorn! =)