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March 27, 2017

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The midpoint of line segment AB is (1,2). The coordinates of A are (-3,6). Find the coordinates of B.

I know how to figure out midpoint, but I'm having trouble figuring out how to do this problem. Any help would be appreciated. :)

  • Geometry - ,

    The midpoint has an x-coordinate that is 4 larger than point A's. It has a y-coordinate that is 4 points less than point A's.

    Apply the same changes to the midpoint coordinates to get the location of B.

    The x-coordinate will be 1 + 4 = 5
    You do the other one.

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