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

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

Prove that the points (4, 8), (7, 5) , (1, -1) and (-2, 2) are the vertices of a parallelogram.

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

Prove that the point (-2,-1),(1,0),(4,3) and (1,2) are the vertices of parallel-gram.Is it a rectangle?

Prove that the points (3, 2), (6, 3), (7, 6) and (4, 5) are the vertices of a parallelogram. Is it a rectangle?

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

Without using distance formula, show that points (-2, -1), (4, 0) , (3, 3) , and (-3, 2) 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.

Prove that the points (-1, -2), (-2, -5), (-4, -6) and (-3, -3) 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.