Answer:

means the inverse function of

To do that, we just do the following steps.
1. Set up equation

Remember Ruler Notation, that f(x)=y

Swap x and y

Solve for y


So we found our inverse function, now we just plug in 4 for x



Option 4 is the answer.
For question 6, plug in 2 for x in function g
We get


Now, we plug in -15 for f.


Option 1 is the answer.
For question 7, plug in g(x) for x in f(x).

Option 1 is the answer.
We are given




Option 4 is the answer. Rember square roots give two answers, a positive and negative unless we take the only the positive answer.
Plug in -1 in g.

Now, plug that in for x in f(x).

Option 1 is the answer.
Next, just compose again.

Option 4 is the answer.




Plug in 2


First Option is answer.