The answer would be +3 since ur adding 3 every time
Answer:
C) They are perpendicular lines.
Step-by-step explanation:
We first need to find the slope of the graph of the lines passing through these points using:

The slope of the line that passes through (−12, 15) and (4, −5) is


The slope of the line going through (−8, −9) and (16, 21) is



The product of the two slopes is

Since

the two lines are perpendicular.
If p||q then, m∠1=m∠3
9x = 117
x = 117/9
x = 13
The common ratio is the multiplication of 2 each time. 5x2= 10// 10x2=20// 20x2=40
I hope you don't find the solution too messy. If there is anything you don't get. Let me know and I will explain it: