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Question 757415: how do you determine whether the lines are parallel, perpendicular or neither. For 3x - 6 y = -20 and 36 x + 12 y = -12
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! how do you determine whether the lines are parallel, perpendicular or neither. For 3x - 6 y = -20 and 36 x + 12 y = -12
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If the slopes are equal, they're parallel.
If the slopes are negative reciprocals, they're perpendicular.
Otherwise, they're neither.
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