The mid point of cd is e(-1, 0). endpoint is c(5, 2). what are the coordinates of the other endpoint

The coordinates of the midpoint of a line segment is the average of the coordinates of the endpoints. Calculations for the coordinates of the other endpoint are shown below.

                abscissa     -1 = (5 + x) / 2         ; x = -7

                ordinate       0 = (2 + x) / 2         ; y = -2

Thus, the coordinates of the endpoint is (-7, -2).

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