Jeremiah W.

asked • 03/23/18

Line WX contains (−1, 2) and (4, 12) Line YZ contains points (5, 8) and (−2, −6). Lines WX and YZ are

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Philip P. answered • 03/23/18

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Use the slope (m) formula below to find the slopes of lines WX and YZ:
 
m = (y2-y1)/(x2-x1)
 
If the slopes are equal, the lines are parallel.  If the slopes are negative reciprocals of one another (e.g, 3 and -1/3) , then they are perpendicular.
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