1.	A geometrical representation of a map is called a ______?______.
		A.	chart	B.	directed graph
		C.	pattern	D.	coordinate plane
		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.	3	B.	4
		C.	5	D.	2
		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.	1	B.	3
		C.	0	D.	2
		Hint
	4.	How many ways can supplies be transferred directly to Fitchburg from other cities?
		A.	4	B.	1
		C.	2	D.	3
		Hint
	5.	To which city is there exactly one way in which supplies can be transferred directly from another city?
		A.	Worcester	B.	Providence
		C.	Boston	D.	Lowell
		Hint