1.	In the formula d = rt, the time t varies inversely as the rate r. A racing motorcycle traveling at 96 miles per hour completed one lap around a track in 1.5 minutes. How fast was the motorcycle traveling if it completed the next lap in 1.2 minutes?
		A.	168.5 mph	B.	76 mph
		C.	120 mph	D.	171.5 mph
		Hint
	2.	Suppose y varies inversely as x, and y = 9 when x = -4. What is the constant of variation?
		A.	-36	B.	-13
		C.	36	D.	5
		Hint
	3.	Which statement is not true of the graph?
		A.	The graph has inverse variation.	B.	y is inversely proportional to x.
		C.	The constant k is positive.	D.	The graph crosses the x- and y- axes.
		Hint
	4.	Which statement is not true about a direct variation?
		A.	y is inversely proportional to x.	B.	The graph is straight line.
		C.	y varies directly as x.	D.	The constant of variation is .
		Hint
	5.	Alice and Gertrude take 8 hours to mow a lawn. If everyone mows the lawn at the same speed as Gertrude and Alice, how long would it take 4 people to mow a lawn?
		A.	4 hours	B.	2 hours
		C.	6 hours	D.	3 hours
		Hint