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Question 995212:  The midpoint of SR is (5,-11).  One endpoint is S(3,5).  What are the coordinates of point R? 
 Answer by fractalier(6550)      (Show Source): 
You can  put this solution on YOUR website! To go from one endpoint to the midpoint, notice we added two to the x-coordinate and subtracted 16 from the y-coordinate.  We would do exactly the same to go from the midpoint to the other endpoint.  Thus the other endpoint is 
(5+2, -11-16) or (7, -27) 
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