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If lines are parallel or perpendicular 4x-8y=9 and 8x-7y=9
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If lines are parallel or perpendicular 4x-8y=9 and 8x-7y=9

User Gabrielmaldi
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1 Answer

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4x-8y=9
-8y=9-4x
8y=-9+4x
y=0.5x-9/8

8x-7y=9
-7y=-8x+9
7y=8x-9
y=8/7x-9/7

neither, they aren't parallel or perpindicular. I tested by graphing them as well.
User Rpophessagr
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