12.
In the standard (x,y) coordinate plane below, 3 of the
vertices of a rectangle are shown. Which of the following
is the 4th vertex of the rectangle?
(-1-3).
12.1
F.O (3,-7)
G.O (4-8)
H.O (5,-1)
1.0 (8,-3)
J.O (9,-3)