Answer:
Hello,
answer C
Step-by-step explanation:

Answer:
D. 
Step-by-step explanation:
Determine the groups:
- 
Factor out terms: 
The -2 was factored out in the second group to ensure that both groups had
(x-12).
This is a negative graph because the graph go to the left with a negative slope. Y=-1/2x
I think it is -14. I inserted 4 as n. I don't know if that's how you do it.