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16 January, 10:16

Which lines are perpendicular to the line y - 1 = 1/3 (x+2) ? Check all that apply.

A. y + 2 = - 3 (x-4)

B. y - 5 = 3 (x+11)

C. y = - 3x - 5/3

D. y = 1/3x - 2

E. 3x + y = 7

+2
Answers (2)
  1. 16 January, 10:33
    0
    The slope of the given line is 1/3.

    The perpendiculars all have the negative reciprocal slope, - 3.

    A. y + 2 = - 3 (x-4)

    Yes, slope - 3.

    B. y - 5 = 3 (x+11)

    No, slope 3.

    C. y = - 3x - 5/3

    Yes, slope - 3.

    D. y = 1/3 x - 2

    No, that's slope 1/3.

    E. 3x + y = 7

    That's

    y = - 3x + 7

    Another slope - 3, Yes.
  2. 16 January, 10:41
    0
    a c e
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Home » Mathematics » Which lines are perpendicular to the line y - 1 = 1/3 (x+2) ? Check all that apply. A. y + 2 = - 3 (x-4) B. y - 5 = 3 (x+11) C. y = - 3x - 5/3 D. y = 1/3x - 2 E. 3x + y = 7
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