Question

The midpoint of is (5, –11). The coordinates of one endpoint are U(3, 5). Find the coordinates of endpoint V. But please don't just give me the answer. I need help!

Answer 1

let V=(h,k)
h+3=5*2; h=7;
k+5=-11*2
k=-27
V=(7,-27)

Answer 2

\[\large{\underline{midpoint(x, y)}}= (\frac{x_u+x_v}{2},\frac{y_u+y_v}{2})\]\[\large{5=\frac{3+x_v}{2}}\]\[\large{x_v=7}\]
\[\large{-11=\frac{5+y_v}{2}}\]\[\large{y_v=-27}\]
\[\huge{V=(7,-27)}\]