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What is the slope of the line that is perpendicular to y - 2x = 1?



Discussion (8)

  • The formula for perpendicularity is m=-¹/m
    So, y-2x=1
    y=2x + 1
    y = mx +c
    By comparison, m = 2
    Recall , m=-¹/m
    So m= -¹/2

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  • Toyyib

    Slope is same as gradient.So the chosen answer is correct

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  • Y-2x=1
    4mula for gradient and intercep form is Y=mx+c
    Rearrange, y=2x-1
    :.m1=2
    Remember for penperdicular line the formula is m1m2=-1 or m2=-1/m1
    :. the answer is -1/2

  • Y-2x=1
    Rearrange, y=2x-1
    :.m1=2
    Remember for penperdicular line the formula is m1m2=-1 or m2=-1/m1
    :. the answer is -1/2

  • Dunmininu

    Formula for slope of a line is y= mx + c. Where m is slope
    Y= 2x + 1.
    The equation of a perpendicular line must have a slope that is the negative reciprocal of the original slope.
    Perpendicular slope = -1/2

  • Chukwu Chibuzor

    Equation of a straight line y=mx+c

    Rearranging y-2x=1;
    We have y=2x+1:
    Comparing with equation of a straight line:
    Slope=m=2

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  • Ayetoba Adewale

    THE CORRECT ANSWER IS A

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  • Ayetoba Adewale

    THE CORRECT ANSWER IS (A )
    Y=1+2X

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