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algebra 1

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The midpoint of XY is point M(-12,5). If the coordinates of X are (3,-3), what are the coordinates of Y?

  • algebra 1 - ,

    let the other endpoint be Y(a,b)
    (a+3)/2 = -12 and (b-3)/2 = 5
    a+3 = -24 and b - 3 = 10
    a = -27 and b = 13

    Y is (-27,13)

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