4. Determine if the diagonals of the parallelogram bisect each other.
A(4,8) B(4,2) C(82) D(8,8)

A

Step-by-step explanation:

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

the first one, all those points on the line just make a strait line.