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Mathematics 9 Online
OpenStudy (anonymous):

Can someone help me To tell wither these lines are parallel or perpendicular or nither!, Line AB : (8,5) and (-6,-3) CD:(3,-5) and (-29,51) Please show you're work!

OpenStudy (amistre64):

(8, 5) -(-6,-3) -------- <14,8> = 2<7,4> (-29,51) -(3,-5) ------- <-32,56> = <-4,7> perps fer sure

OpenStudy (anonymous):

thanks! My teacher told me if they multiply it would give me negative one! But yea It kinda takes me time to soak things up

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