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.