1.	Find the slope of for isosceles trapezoid ABCD.
		A.		B.
		C.		D.
		Hint
	2.	Kayla wants to prove that the quadrilateral QRST is a parallelogram. How should she begin proving this in a coordinate proof?
		A.	Find the measure of the interior angles of the quadrilateral.
		B.	Draw the diagonals of the quadrilateral.
		C.	Find the slopes of the opposite segments.
		D.	Find the midpoints of each segment.
		Hint
	3.	Identify the coordinates of Z.
		A.	(-c, a)	B.	(-c, -b)
		C.	(-c, b)	D.	(c, -b)
		Hint
	4.	Find the x-coordinate of R if PQRS is a rectangle.
		A.	a	B.	b
		C.	2a	D.	2b
		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.	square
		C.	trapezoid	D.	rectangle
		Hint