Question

prove that two lines are perpendicular only if their products of slope is -1.​

Answer 1

Answer:

Lines are perpendicular if they intersect at right angles (90°) to each other. If two lines are perpendicular, then their slopes are negative reciprocals.

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Answer 2

Answer:

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Two lines are perpendicular if the product of their slopes is:-

Perpendicular. Lines are perpendicular if they intersect at right angles (90°) to each other. If two lines are perpendicular, then their slopes are negative reciprocals.

Step-by-step explanation:

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