Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.
f(x) = x^3 + 4 and g(x) = 3 sqrt x-4
I did part 1, i just need part 2!!

Question

anonymous · Answer

attachment

anonymous · Answer

now u just need to switch it to find g(f(x)) and make sure its equal to x.

anonymous · Answer

@radar

radar · Answer

I can't even follow the link.  It is the 2nd line that confuses me.  I don't see where you subsstituted g(x), instead you substituted 3x-4 not 3(x-4)^(1/2).

So if I can't understand that one, I'm sure I can't follow the other one lol.  Sorry.

anonymous · Answer

It's not a link, its a picture, u click the picture, not the word btw.

anonymous · Answer

I just wrote out each step carefully, so you could see it. Anyway, my teacher said it was right.