1.	A geometrical representation of a map is called a ______?______.
		A.	coordinate plane	B.	pattern
		C.	directed graph	D.	chart
		Hint
	2.	Using the directed graph, how many different routes are there to get from the Boston plant to the Worcester plant in exactly two transfers?
		A.	2	B.	1
		C.	4	D.	3
		Hint
	3.	Using the directed graph, how many different routes are there to get from the Boston plant to the Fitchburg plant in at most two transfers?
		A.	4	B.	5
		C.	2	D.	3
		Hint
	4.	Which city or cities are there exactly three ways in which supplies can be transferred from other cities?
		A.	Providence	B.	Worcester and Boston
		C.	Providence and Boston	D.	Providence and Worcester
		Hint
	5.	Which city has exactly two ways in which supplies can be transferred from other cities?
		A.	Worcester	B.	Providence
		C.	Boston	D.	Lowell
		Hint