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math

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Find the other endpoint of a line segment with the given midpoint and one endpoint.

Endpoint: (0, 0); Midpoint: ( 2, -8)

  • math - ,

    Think on this: x is twice half the x change 0+2 ,or x endpoint is 2*2: x=4
    y endpoint is twice the change from end to mid, or 2*(0-8) or y endpoint is -16

    (4,-16)

  • math - ,

    (0,0), (2,-8), (x,y).

    2-0 = x-2.
    X = 4.

    -8-0 = y-(-8).
    Y = -16.

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