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Earn +20 ptsQ: How do you know if two non-vertical lines are perpendicular?
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Continue Learning about Math & Arithmetic
In a coordinate plane two nonvertical lines are what if and only if the product of their slopes is -1?
perpendicular
In a coordinate plane two nonvertical lines are WHAT if and only if the product of their slopes is negative one?
Perpendicular
How do you know if two lines are perpendicular?
When the lines intersect at a 90º angle
What is parallel perpendicular lines look like?
As far as we know, two lines can be perpendicular, or they can be parallel, but they can't be both.
Draw two intersecting lines but not perpendicular?
draw two intersecting lines that are not perpendicular
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