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Mathematics 14 Online
OpenStudy (anonymous):

HW HELP MEDALS AWARDED: Two lines are perpendicular if : A. they are negative reciprocals B. one slope is the negative reciprocal of the other C. they cross each other D. one slope is the negative of the other

OpenStudy (midhun.madhu1987):

B. one slope is the negative reciprocal of the other The product of the slopes of 2 perpendicular lines is -1.

OpenStudy (midhun.madhu1987):

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