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Mathematics 7 Online
OpenStudy (anonymous):

if two lines are perpendicular which statement must be true

OpenStudy (anonymous):

A. the slopes of the two lines are negative reciprocals B. the slopes of the two lines are zero C. the slopes of the two lines are undefined D. the slopes of the two lines are equal

rishavraj (rishavraj):

the slopes of the two lines are negative reciprocals like lines y = 3x + 5and y = -1/3 x + 8 are perpendicular

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