Guide :High School

y=2x+7 and y=-2x+3 are parallel or perpendicular or neither ?

Y=2x+7 and y=-2x+3 are parallel or perpendicular or neither ?
Perpendicular.. because slope of y=2x+7 is 2 and slope of y=-2+7 is - 2 and - 2*1/2=-1 ...

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