Question

Show that the points (a, b), (a + 3, b + 4), (a - 1, b + 7) and (a - 4, b + 3) are the vertices of a parallelogram.​

Answer 1

Step-by-step explanation:

diagonals bisects each other in parallelogram so their midpoint should be equal so these are consecutive vertices of parallelogram

hope it helps