Answer:
<u>-7b-7</u>
Step-by-step explanation:
First you have to distribute 11 throughout the parentheses.

Now we can combine like terms. (-18b, 11b, -33, 26)
and 


This is your simplified answer for your expression.
<u>-7b-7</u>
Answer:
"Theorem 106: If the slopes of two lines are opposite reciprocals of one another, or the product of their slopes is −1, then the lines are nonvertical perpendicular lines." - www.cliffsnotes.com
The lines intersect at two places.
They intersect at approximately (-2,8) and (2,3)
Looking at the choices they would be at (1.8,3.2) and (-2.8,7.8)
The answer is D. Both A and B.