1.	A line graph _________________________.
		A.	must have years labeled on the horizontal axis
		B.	does not have line segments connecting the data points
		C.	is best used to show changes over time
		D.	shows only increases in data
		Hint
	2.	Each year, the population of Chicago increases. What would a line graph showing the yearly population of Chicago look like?
		A.	It would go down from left to right.
		B.	It would be a vertical line.
		C.	It would be a horizontal line.
		D.	It would go up from left to right.
		Hint
	3.	Predict which of these items the store will sell the most of next month.
		A.	shirts	B.	shorts
		C.	socks	D.	ties
		Hint
	4.	What would you predict your resting heart rate would be if you exercise 25 minutes per day?
		A.	70	B.	50
		C.	100	D.	120
		Hint
	5.	What would you predict your heart rate would be if you exercise 40 minutes per day?
		A.	10	B.	120
		C.	50	D.	0
		Hint