1.	If the rational expression of a function in simplest form is defined for x = a, but the original function is undefined for x = a, what happens at x = a?
		A.	There is a point discontinuity.	B.	There is a vertical asymptote at x = a.
		C.	There is a vertical asymptote at x = 0.	D.	f(a) = 0
		Hint
	2.	Write the equation(s) of the vertical asymptote(s) of the function.
		A.	x = 3	B.	x = –3, x = –5
		C.	x = 3, x = –5	D.	x = –5
		Hint
	3.	The function has which of the following properties?
		A.	f(x) = 1 for all values of x.	B.	f(x) = 0 for all values of x.
		C.	It has a hole at (3, 0).	D.	It has a hole at (3, 1).
		Hint
	4.	In a certain job, the function represents the amount of hours worked x in relation to the amount of stress f(x) felt by the workers. For what values of x does this graph have meaning?
		A.	for all values of x	B.	for
		C.	for and x < 40	D.	for and x > 40, because stress is a non-negative quantity
		Hint
	5.	Which of the following functions has a hole and a vertical asymptote?
		A.		B.
		C.		D.
		Hint