1.	What is the equation of the vertical asymptote of the function ?
		A.	x = 1	B.	y = 1
		C.	x = -4	D.	x = 2
		Hint
	2.	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
	3.	What is the equation of the vertical asymptote of the function ?
		A.	There is a hole at 4, not a vertical asymptote.	B.	x = –4
		C.	x = 5	D.	x = 4
		Hint
	4.	The function has which of the following properties?
		A.	f(x) = 0 for all values of x.	B.	It has a hole at (3, 0).
		C.	f(x) = 1 for all values of x.	D.	It has a hole at (3, 1).
		Hint
	5.	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 and x > 40, because stress is a non-negative quantity	B.	for
		C.	for and x < 40	D.	for all values of x
		Hint