Answer:
-q^2 -q + 72
Step-by-step explanation:
(9+ q)(8-q)
=9(8-q)+ q(8-q)
=72 - 9q +8q -q^2
= -q^2 -q + 72
Perpendicular
m=y2-y1/x2-x1
m=15-3/14-(-2)
m=3/4