Question

Without using distance formula prove that the points (-2, -1), (1, 0), (4, 3), and (1, 2) are the vertices of a parallelogram.

Answer 1

Answer:

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

we should draw the graph

and by observing we should prove