algebra

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Write an equation in the form y = mx + b for the line that has a slope of 1/2 and contains the point (12, 3).

  • algebra -

    since the slope is constant then for any point (x,y),

    (y-3)/(x-12) = 1/2
    y-3 = 1/2 x - 6
    y = 1/2 x - 3

    Get familiar with the various ways of writing the equation of a line:

    slope-intercept
    point-slope
    two-point
    two-intercept
    standard

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