If one endpoint is (2,5) and the midpoint is (5,1) what are the coordinates of the other endpoint ???

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1. Answer:

   (8, -3)

   Step-by-step explanation:

   The coordinates of the midpoint are the average of the endpoints.

   5 = (x + 2) / 2

   10 = x + 2

   x = 8

   1 = (y + 5) / 2

   2 = y + 5

   y = -3

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