Question

The midpoint of line UV is (5, –11). The coordinates of one endpoint are U(3, 5). Find the coordinates of endpoint V.

Answer 1

\[((3+x_{v})/2, (5 + y _{v})/2) = (5, -11)\]
therfore the x-value of v is 7 (as 3+7/2 = 5)
and then the y-value of v is -27 (as 5 - 27/2 = -11)
so V is (7,-27)