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math

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slope = -2, passing through (0, -3)
equations for each line point-slope, slope-intercept form

  • math -

    Slope = -2, P(0,-3).

    Slope-intercept Form.
    Y = mx + b
    -2*0 + b = -3
    b = -3.
    Eq.: Y = -2x - 3.

    Point-slope Form.
    (0,-3), (x,y).
    Slope = (y+3)/(x-0) = -2
    Cross multiply:
    Eq.:y+3 =-2(x-0).

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