1.	A geometrical representation of a map is called a ______?______.
		A.	chart	B.	directed graph
		C.	coordinate plane	D.	pattern
		Hint
	2.	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.	2	B.	5
		C.	4	D.	3
		Hint
	3.	Using the directed graph, what is the fewest number of transfers possible to get from the Fitchburg plant to the Lowell plant?
		A.	2	B.	3
		C.	1	D.	0
		Hint
	4.	To which city is there exactly one way in which supplies can be transferred directly from another city?
		A.	Lowell	B.	Boston
		C.	Worcester	D.	Providence
		Hint
	5.	Which city has exactly two ways in which supplies can be transferred from other cities?
		A.	Providence	B.	Worcester
		C.	Boston	D.	Lowell
		Hint