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13 October, 19:36

Two lines are perpendicular. The slope of one line is - 2, What is the slope of the other line?

A. 1/2

B. - 1/2

C. - 2

D. 2

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Answers (1)
  1. 13 October, 20:47
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    Perpendicular lines have negative reciprocal slopes. All that means is " flip " the slope and change the sign.

    slope = - 2, or - 2/1 ... so flip the slope ... - 1/2 ... and change the sign ... 1/2.

    so the perpendicular slope would be 1/2.
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