1.	Which of the following types of functions may have a hole?
		A.	square root	B.	quadratic
		C.	absolute value	D.	rational
		Hint
	2.	Which of the following types of functions is always continuous on its domain?
		A.	square root	B.	greatest integer
		C.	rational	D.	inverse variation
		Hint
	3.	Which type of function looks like a direct variation function when x > 0?
		A.	absolute value function	B.	rational function
		C.	square root function	D.	quadratic function
		Hint
	4.	What type of function is y = 2?
		A.	rational	B.	direct variation
		C.	absolute value	D.	constant
		Hint
	5.	What type of function is the following?
		A.	square root	B.	quadratic
		C.	direct variation	D.	rational
		Hint