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