Home > Geometry > Angles Between Intersecting and Parallel Lines

Perpendicular lines have _________ slopes?

Answer 1

Sadie Adams

negative reciprocal

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Answer 2

Aaliyah Anderson

"Flip the fraction and change the sign"

One word might be "opposite" slopes.

They run in opposite directions, and as steep as one is, as gentle is the other.

The opposite of "steep to the left" is "gentle to the right"

The opposite of "x's to the right " is 'lots of y's to the left"

ONe slope is the negative reciprocal of the other.

IN easy parlance...."Flip the fraction and change the sign"

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.