1.	Which of the following is a rational function?
		A.		B.
		C.		D.
		Hint
	2.	Which of the following types of functions is always continuous on its domain?
		A.	inverse variation	B.	greatest integer
		C.	rational	D.	square root
		Hint
	3.	Which function does not have a value of 1 when x = 1?
		A.		B.
		C.		D.
		Hint
	4.	What type of function is y = 2?
		A.	constant	B.	direct variation
		C.	rational	D.	absolute value
		Hint
	5.	What type of function is the following?
		A.	square root	B.	direct variation
		C.	quadratic	D.	rational
		Hint