Question

The coordinates of point T are (0,4). The midpoint of ST is (7.-8). Find the coordinates of point S.​

Answer 1

S is (14, -20).

Explanation:

Let the coordinates of S be (x, y), then:

(x + 0) /2 = 7

---> x = 14.

(y + 4)/2 = -8

---> x + 4 = -16

---> x = -20.