1.	A line graph _________________________.
		A.	is best used to show changes over time
		B.	does not have line segments connecting the data points
		C.	must have years labeled on the horizontal axis
		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 up from left to right.
		B.	It would be a vertical line.
		C.	It would go down from left to right.
		D.	It would be a horizontal line.
		Hint
	3.	What would you predict your resting heart rate would be if you exercise 25 minutes per day?
		A.	120	B.	50
		C.	100	D.	70
		Hint
	4.	How many minutes would you have to exercise each day to have a resting heart rate of 60 beats per minute?
		A.	60 minutes	B.	20 minutes
		C.	30 minutes	D.	10 minutes
		Hint
	5.	What would you predict your heart rate would be if you exercise 40 minutes per day?
		A.	50	B.	120
		C.	0	D.	10
		Hint