Answer:
arithmetic progression problem
Answer:m=-6/5
Step-by-step explanation: To figure this out you need to use the slope formula.
m=y2-y1/x2-x1
m=-17-1/17-2
m=-18/15
This Can then be reduced to m=-6/5
Answer:
The ordered pair is 
Step-by-step explanation:

D, Line CA hope i helped.