SOLUTION: A line contains points (2, -2) and (-4, 1). Another line graphed in the same coordinate plane contains points (1, 2) and (-3, 4). Based on the slopes of these lines, are they paral

Algebra ->  Points-lines-and-rays -> SOLUTION: A line contains points (2, -2) and (-4, 1). Another line graphed in the same coordinate plane contains points (1, 2) and (-3, 4). Based on the slopes of these lines, are they paral      Log On


   

Question 314553: A line contains points (2, -2) and (-4, 1). Another line graphed in the same coordinate plane contains points (1, 2) and (-3, 4). Based on the slopes of these lines, are they parallel, perpendicular or neither?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First, calculate the slopes.
m=%28y2-y1%29%2F%28x2-x1%29
m1=%281-%28-2%29%29%2F%28-4-2%29=3%2F%28-6%29=-%281%2F2%29
m2=%284-2%29%2F%28-3-1%29=2%2F-4=-%281%2F2%29
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Parallel lines have identical slopes.
The two lines are parallel.
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