Answer:
The function f has an inverse because it is one-to-one.
Step-by-step explanation:
The condition for a function to have an inverse is that every x coordinate maps to a single y - coordinate. As illustrated by the diagram attached in the second picture, every x value maps to one y value therefore satisfying the condition making the function have an inverse.
1) R
2) A
5) I
7) Q
8) N
9) L
10) H
11) U
12) E
13) Y
Sorry I could on see these ones. The fractions were a bit hard to see but I hope this helped a bit.
Answer:

Step-by-step explanation:
Given

Required
Solve for A
The question implies that we make A the subject of the formula.
Start by subtracting By from both sides of the equation by x


Divide both sides by x


<em>Solved</em>
Answer:b and c
Step-by-step explanation: