1.	Which of the following types of functions is always continuous on its domain?
		A.	square root	B.	rational
		C.	inverse variation	D.	greatest integer
		Hint
	2.	When will it be true that ?
		A.	only when x is an integer	B.	always
		C.	only when x is not an integer	D.	never
		Hint
	3.	What type of function is y = 2?
		A.	rational	B.	absolute value
		C.	direct variation	D.	constant
		Hint
	4.	What type of function is the following?
		A.	quadratic	B.	square root
		C.	direct variation	D.	rational
		Hint
	5.	What type of function is the following?
		A.	quadratic	B.	inverse variation
		C.	absolute value	D.	square root
		Hint