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Mathematics 7 Online
OpenStudy (anonymous):

Which pair of lines is perpendicular? (Points : 4) Option A: 6y=5x+6 and y= -5/6+3 Option B: 4y=3x and y=4/3x-2 Option C: y=2x+5 and y=2x-1/5 Option D: -3x+7y=7 and 3y=-7x-6

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