1.	A best-fit line drawn on a scatter plot ________
		A.	always has a positive slope.
		B.	approximates the linear relationship of data points.
		C.	is a line that goes through every data point.
		D.	must be drawn through the first and last data points.
		Hint
	2.	Choose the scatter plot that has a prediction equation with a negative slope.
		A.		B.
		C.		D.
		Hint
	3.	The scatter plot below shows the women's winning marathon times and the high temperatures on the marathon days. Which prediction equation best shows how marathon times and temperature are related?
		A.		B.
		C.		D.
		Hint
	4.	A best-fit line is drawn on a scatter plot showing the average daily temperature and the number of people at a public swimming pool. The slope of the line would probably be ________
		A.	zero.	B.	undefined.
		C.	positive.	D.	negative.
		Hint
	5.	The table below shows the land-speed records to the nearest mile per hour. Draw a scatter plot for the data and use it to predict the approximate land-speed record for the year 2005. Assume the rate of increase of speed records remains the same.
		A.	700 mph	B.	980 mph
		C.	830 mph	D.	600 mph
		Hint