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Mathematics 20 Online
OpenStudy (anonymous):

9y=5x-7 and 63y=25x-8 what kind of lines are they? same line, parallel,perpendicular, crossing,not90 degree angle?

OpenStudy (rulnick):

Slope of first is 5/9. Slope of second is 25/63. Not same, not parallel, not perp. Yes crossing. Not 90 degree angle.

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