1.	A line graph _________________________.
		A.	must have years labeled on the horizontal axis
		B.	is best used to show changes over time
		C.	does not have line segments connecting the data points
		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 be a horizontal line.
		B.	It would go up from left to right.
		C.	It would be a vertical line.
		D.	It would go down from left to right.
		Hint
	3.	The Pacific giant kelp plant is one of the fastest-growing plants in the world. The table below shows the growth of one plant. Predict what the height of the plant will be in week 10.
		A.	10 ft	B.	20 ft
		C.	12 ft	D.	14 ft
		Hint
	4.	How many minutes would you have to exercise each day to have a resting heart rate of 60 beats per minute?
		A.	20 minutes	B.	60 minutes
		C.	30 minutes	D.	10 minutes
		Hint
	5.	Make a line graph for the data in the table.
		A.
		B.
		C.
		D.
		Hint