The answer for the question is C
Step-by-step explanation:
For the equation
, factoring gives us the following:

For the equation
, factoring gives us the following:

From this, we see that the common factor is 
Answer:
1
Step-by-step explanation:
it should be 1. I believe this is the identity property.
Tried my best to show you my steps
Answer:

Step-by-step explanation:

Since
:

Solving for
:

Verify that the point of intersection occurs at 