Question

Quadrilateral ABCD is shown on the coordinate plane.

What needs to be proven to conclude that quadrilateral ABCD is a parallelogram?
A
-6 -4 -2
B.
C.
O A. slope of AB = slope of CD and slope of BC = slope of DA
slope of AB= slope of BC and slope of CD= slope of DA
side length of BC= side length of DA and slope of DA x slope of AB = -1
OD. side length of AB= side length of CD and slope of BC x slope of CD=-1
6
4-
2+
-2-
4-
-6-
D
B
6
C
X

Answer 1

The slope of AB = slope of CD and slope of BC = slope of DA

Hope this helps!

Explanation: