00:01
In this question, we have to find the composite function, fg and gf.
00:06
If the function is given here, in number one is fx is x minus 4, and gx is 2x plus 4.
00:15
Now, as the question, i'm not very sure what is the question for number 2, where fx is either 3x plus 6 and gx is x minus 6 or fx is xq plus 6 and gx is x minus 6.
00:31
So i decided to do both possible scenario.
00:34
Okay, now for fg, composite function fg, it really means putting g inside the function f.
00:44
That means you put the entire g, the entire function g inside every x you see in f.
00:52
That's what it means.
00:55
For the function gf, it means putting the entire function f in every x you see in g.
01:04
So for number one, when my fx is x minus 4, gx is 2x plus 4.
01:15
So fg means i put the g, which is 2x plus 4, into every x i see.
01:27
So this will be putting into the x here in f, so it's 2x plus 4 minus 4...