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6 April, 09:43

The equation of line AB is (y-3) = 5 (x - 4). What is the slope of a line perpendicular to line AB?

-5

5

-1/5

1/5

+2
Answers (1)
  1. 6 April, 10:11
    0
    The perpendicular slope would be - 1/5.

    Step-by-step explanation:

    This is because we can locate the slope of the original line as 5 (the number just outside of the x-coordinate parenthesis.

    Then we know that perpendicular lines have opposite and reciprocal slopes. So we take the 5 and change the sign (-5), then we flip it (-1/5).
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