What are the coordinates of the fourth point that could be connected with (–1, 0), (1, 0), and (1, –1) to form a rectangle?
a.
(1, 1)
b.
(0, –1)
c.
(1, 0)
d.
(–1, –1)

I actually plotted the coordinates. The fourth point that could be connected with (-1,0) (1,0) and (1,-1) to form a triangle is (-1,-1) Choice D.

x       y
-1     0
 1     0
 1    -1
-1    -1

3.64 deaths an hour.