SOLUTION: Q( - 1, - 1) is one endpoint of QR. M(2.5, 4.5) is the midpoint of QR. Determine the coordinates of endpoint R

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Question 1167456: Q( - 1, - 1) is one endpoint of QR. M(2.5, 4.5) is the midpoint of QR. Determine the coordinates of endpoint R
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
The distance from x1 to the midpoint is the same as the distance from the midpoint to x2. The distance is 3.5 to the midpoint, and 2.5+3.5=6. That is the x-coordinate.
The y distance is 5.5 to the midpoint, and 4.5+5.5 is 10
the values are (6, 10) for the other endpoint.