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07-06-2017
Mathematics

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Given two linear equations, explain how you can determine if the lines are parallel without graphing them

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ghanami ghanami

07-06-2017

hello :
let A and B two points in the first line calculate the slope : : (YB - YA)/(XB -XA)
let C and D two points in the second line calculate the slop (YC - YD)/(XC -XD)
you are slope

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