1.	Two numbers grouped together like (2, 5) are called ______.
		A.	an ordered pair
		B.	a coordinate system
		C.	y-coordinates
		D.	x-coordinates
		Hint
	2.	The origin O is represented by which ordered pair?
		A.	(1, 0)	B.	(0, 0)
		C.	(0, 1)	D.	(1, 1)
		Hint
	3.	Name the ordered pair for point A.
		A.	(2, 4)	B.	(4, 1)
		C.	(4, 2)	D.	(1, 4)
		Hint
	4.	What is the range of the relation {(-1, 5), (2.3, 8.7), (5.1, -7.2),(6, -12.5)}.
		A.	{-12.5, -7.2, -1, 2.3, 5, 5.1, 6, 8.7}
		B.	{-12.5, -7.2, 5, 8.7}
		C.	{-6.5, -2.1, 4, 11}
		D.	{-1, 2.3, 5.1, 6}
		Hint
	5.	Find the range of the relation graphed below.
		A.	{-3, -1, 0, 1, 3, 4}	B.	{-3, 0, 1, 3}
		C.	{-1, 0, 4, 5}	D.	{-3, -1, 1, 3, 4}
		Hint