Answer:
Option D
Step-by-step explanation:
Combine Like Terms.

Hope this helps.
I think it is 2pi but don't take my word for it :)
Answer: 11
Step-by-step explanation:
Answer:
point B = -11,7
point C = 11,7
Step-by-step explanation:
there are for parts of a graph i will list them:
the top left is (- +)
the top right is (+ +)
the bottom left is (- -)
the bottom right is (+ -)
hope this helps