1.	OBCD is a square. What are the coordinates of D?
		A.	(0, a)	B.	(0, 0)
		C.	(a, a)	D.	(a, 2a)
		Hint
	2.	ABCD is a parallelogram. What are the coordinates of C?
		A.	(a + b, c)	B.	(b, c)
		C.	(a, c)	D.	(b, a + c)
		Hint
	3.	Find the slope of for isosceles trapezoid ABCD.
		A.		B.
		C.		D.
		Hint
	4.	Kayla wants to prove that the quadrilateral QRST is a parallelogram. How should she begin proving this in a coordinate proof?
		A.	Find the slopes of the opposite segments.
		B.	Draw the diagonals of the quadrilateral.
		C.	Find the measure of the interior angles of the quadrilateral.
		D.	Find the midpoints of each segment.
		Hint
	5.	Points A, B, C, and D are the midpoints of , , , and respectively. What is the most specific description of quadrilateral ABCD?
		A.	parallelogram	B.	rectangle
		C.	square	D.	trapezoid
		Hint