Using slope concept, prove (-2,1),(0,3),(2,1) and (0,-1) are the vertices of a parallelogram.

Prove that (-2,-1),(1,0),(4,3)and (1,2) are vertices of a parallelogram.

Prove that the points (2,-1) , (0,2) , (3,3) and (5,0) are the vertices of a parallelogram .

Prove that the points (-2,-1),(4,0),(3,3)and (-3,2) are the vertices of a parallelogram.

Show that the points A(1,2),B(4,3),C(1,0) and D(-2,-1) are the vertices of a parallelogram.

Prove that the points (3,-2),(4,0),(6,-3) and (5,-5) are the vertices of a parallelogram.

By using the concept of slope, show that (-2, -1), (4, 0), (3, 3) and (-3, 2) are the vertices of a parallelogram.

Show that the point (3,-1,-1), (5,-4,0), (2,3,-2) and (0,6,-3) are the vertices of a parallelogram.

Show that the points A(1,0),B(5,3),C(2,7) and D(-2,4) are the vertices of a parallelogram.

By using the concept of slope,show that the points (-2,-10,(4,0),(3,3) and (-3,2) are the vertices f a parallelogram.

Using the slope of line, show that the points (-1,-2) , (0,4) , (3,3) and (2,-3) are the vertices of a parallelogram.