1.	Which of the following types of functions may have a hole?
		A.	quadratic	B.	absolute value
		C.	square root	D.	rational
		Hint
	2.	Which of the following types of functions is always continuous on its domain?
		A.	greatest integer	B.	inverse variation
		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.	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.	quadratic	B.	direct variation
		C.	rational	D.	square root
		Hint