SOLUTION: A line passes through (-3, 9) and (4, 4). Another line passes through (9, -1) and (4, -8). Are the lines parallel or perpendicular?

SOLUTION: A line passes through (-3, 9) and (4, 4). Another line passes through (9, -1) and (4, -8). Are the lines parallel or perpendicular?

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Question 1169813: A line passes through (-3, 9) and (4, 4). Another line passes through (9, -1) and (4, -8). Are the lines parallel or perpendicular?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
You have two sets of points.
USE FORMULA FOR SLOPE OF A LINE.

YOU DO THIS!
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