Algebra

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Write an equation of the line that passes through (9,6) and is perpendicular to the line whose equation is y = -1/3x +7

y-y1=m(x-x1)
y-6=3(x-9)
y-6=3x-27
y=3x-21

  • Algebra -

    Which equation has a slope of 3, and contains the cited point? I will be happy to critique your thinking.

  • Algebra -

    that WAS my work. those 4 lines

    my choices are:
    A)y=-1/3x+9
    B)y=-3x+33
    C)y=3x-21
    D)y=1/3x+3

  • Algebra -

    You got it right. Thanks for showing you work!
    Nice job

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