Substract by 12 from 42, and keep going down until you hit -54, which is 8 hours!
-5cd
I don't know if this is what you asked...hope it helped!
The points (-3,0) and (-3, 1). Actualy any point of type (-3, n) where n is ant number
The answer to the question is A
Answer:
the slope is negative 1 because everytime the line goes down 1 it goes to the right 1