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4 November, 00:20

The slope of a line is - 1/3. Find the slope of a line that is perpendicular to this line.

-3

1/3

3

+3
Answers (2)
  1. 4 November, 00:29
    0
    It 3 becosue it is switched
  2. 4 November, 00:49
    0
    Perpendicular lines always have slopes which are negative reciprocals of each other. Mathematically:

    m1*m2=-1

    In this case:

    -1m/3=-1

    m=3

    So the slope of a perpendicular line to a line with a slope of - 1/3 is 3.
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