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8 July, 16:37

What is the slope of a line that is perpendicular to 6x + 3y = - 9?

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Answers (2)
  1. 8 July, 16:51
    0
    6 x + 3 y = - 9

    3 y = - 6 x - 9 / : 3 (divide both sides by 3)

    y = - 2 x - 3

    m 1 = - 2

    Slope of the perpendicular line:

    m 2 = - 1 / ( - 2)

    m 2 = 0.5
  2. 8 July, 17:03
    0
    6x + 3y = - 9

    3y = - 6x - 9

    y = - 2x - 4.5

    slope (m1) of this line is - 2

    slope of the perpendicular line,

    m2 = - (1/m1)

    m2 = - (1 / - 2)

    m2 = 1/2
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