My answer is B 14-6
please let me know if it is wrong
Answer:
Perpendicular
Step-by-step explanation:
Put all the points on a graph.
Parallel means that the lines that have the same slope and different y-intercepts. Lines that are parallel to each other will never intersect.
On the graph we made we can see that the lines will have to intersect because the points are in positions that no matter which points we chose to connect together, they would intersect with the other line.
Using the formula 20(20-1)/2, we can get the answer. Plugging it in, we have (19*20)/2, which is 190