I believe its d because you subtract (-3 -7 1 9) from both sides
We will be using the Point Slope formula which is 
The information we are given is that m = -4 and the point is (2,-5), so we can input it into the equation.

This simplifies into 
Then we can subtract 5 from each side to get the answer:

B hope it helps have a good day
Answer:
s=19
Step-by-step explanation:
18s-17s+1=20
s+1=20
s=20-1
s=19
2x(-7)^2-9 = 2x49-9=98-9=89 maybe