SOLUTION: is x+7y=8 parellel or perpindicular to y=7x+2
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Question 518975: is x+7y=8 parellel or perpindicular to y=7x+2
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
is x+7y=8 parellel or perpindicular to y=7x+2
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Solve each for "y" so you can see the slopes.
x + 7y = 8
7y = -x + 8
y = (-1/7)x + (8/7)
slope = -1/7
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y = 7x+2
slope = 7
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Product of slopes = (-1/7)7 = -1
so the lines are perpendicular.
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Cheers,
Stan H.
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