SOLUTION: parallel or perpendicular? 2x-7y=5 and 2y-7x=7

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Question 156217: parallel or perpendicular? 2x-7y=5 and 2y-7x=7
Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
2x-7y=5 and 2y-7x=7
:
Put both equation into the slope/intercept form
-7y = 5 - 2x
7y = 2x - 5; multiplied equation by -1
y = x -
and
2y = 7x + 7
y = x +
:
not parallel, they have different slopes
:
slope relationship for perpendicular lines: m1 * m2 = -1
* = +1, so not perpendicular either

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