Answer:
Perpendicular slope is
or
.
Step-by-step explanation:
Given:
Let the perpendicular slope be x.
The given slope is 
For perpendicular slopes, the product of the slopes is equal to -1.
Therefore, 
Therefore, the perpendicular slope is
or
.
Answer:
As the weight increases, the price increases.
Step-by-step explanation:
D. Graph D the answer is D
Answer:
6
Step-by-step explanation:
15-9