1.	Is the relation whose graph is shown below a function?
		A.	Yes; It passes the vertical line test.	B.	Yes; Each element of the range is unique.
		C.	No; The ordered pairs on not on one line.	D.	No; It does not pass the vertical line test.
		Hint
	2.	Select the relation that is a function.
		A.	{(-6, -5), (3, 2), (10, 8), (3, 3)}
		B.	{(5, 10), (-3, 10), (-3, -10), (4, 7)}
		C.	{(21, 11), (21, 10), (21, 9), (21, 8)}
		D.	{(-2, -1),(5, -1), (16, 3), (-3, -9)}
		Hint
	3.	Select the relation that is a function.
		A.
		B.
		C.
		D.
		Hint
	4.	Which of the following is (are) true about functions?
		A.	In a function, each member of the domain is paired with one and only one member of the range.	B.	All of these
		C.	Functions are relations.	D.	Functions pass the vertical line test.
		Hint
	5.	Which graph is not a function?
		A.		B.
		C.		D.
		Hint