21. the midpoint of uv is (5,-11). the coordinates of one endpoint are u(3,5). find the coordinates of endpoint v.

(7,-27)

Step-by-step explanation:

The coordinates of mid point of a line segment having endpoints (a,b) and (c,d) is given by :-

Given : The midpoint of UV is (5,-11). The coordinates of one endpoint are U(3,5).

Let the coordinates of endpoint V be (a,b), then we have

 [Multiply 2 both sides]

Hence, the coordinates of endpoint V = (7,-27)