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fomenos
4 years ago
13

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

Mathematics
1 answer:
alexira [117]4 years ago
7 0
Hello : 
let A and B two points in the first line calculate the slope : <span>:   (YB - YA)/(XB -XA)
</span>let C and D two points in the second line calculate the slop  (YC - YD)/(XC -XD)
you are slope 
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