if P(2,1) and Q(8,1) are two of the vertices of a rectangle. which of the following cannot be another of the vertices? Show your work.
A. (2,8)
B. (8,2)
C. (2,-8)
D. (-2,8)
The other vertices should be (2, x) and (8, x), where [tex]x \neq 1[/tex]. Then, the point that cannot be a vertix is (-2, 8). Hence, the right answer is D.
