1.	What type of function is ?
		A.	absolute value function	B.	inverse variation function
		C.	direct variation function	D.	square root function
		Hint
	2.	Which of the following types of functions may have a hole?
		A.	square root	B.	rational
		C.	absolute value	D.	quadratic
		Hint
	3.	Which type of function looks like a direct variation function when x > 0?
		A.	quadratic function	B.	absolute value function
		C.	rational function	D.	square root function
		Hint
	4.	When will it be true that ?
		A.	always	B.	never
		C.	only when x is not an integer	D.	only when x is an integer
		Hint
	5.	What type of function is the following?
		A.	absolute value	B.	square root
		C.	inverse variation	D.	quadratic
		Hint