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Math

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Find the equation of the straight line that passes through the points (−1, 5) and (5, −1). Find the coordinates of the point where this line crosses the y-axis.

  • Math -

    The slope is [5 - (-1)]/(-1 -5) = -1

    The equation is y = -x + b

    To pass through (-1,5),
    5 = 1 + b
    b = 4

    y = -x +4

    The y-intercept is at (0,4) .

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