Answer:
the graph will describe 13x+15 if the cost per audio book goes up by $1.00.
Step-by-step explanation:
This happens because the coefficient to x is 12 before the change. If the change is the cost per audio book going up by one dollar, the coefficient changes to 13. The initial joining fee is the same ($15.00).

We have two points:

The point slope form of the line:

Substitute


Answer:

2+2=2x+2
-2 to both sides
2=2x
Divide 2
X=1
2 = 2????
Thats what Im getting it from.
Since x is 2 then it would still be 2=2 in simple term.