1.	Which is the graph of the equation y = 2x2 - 1?
		A.		B.
		C.		D.
		Hint
	2.	Find the graph of .
		A.		B.
		C.		D.
		Hint
	3.	Use the graph to find the positive solution to 475 = 4.9x2.
		A.	x = 9.8	B.	x = 8.9
		C.	x = 8.1	D.	x = 9.3
		Hint
	4.	The currency in Poland is the zloty. On a particular day in October 2001, Cindy wanted to exchange $20 for zloty. The rule for converting zloty to U.S. dollars was D = 0.244Z, where D was the price in U.S. dollars and Z was the price in zloty. How much money, in Polish zloty, did Cindy receive? Use the graph below to help you.
		A.	82 zloty	B.	63 zloty
		C.	75 zloty	D.	90 zloty
		Hint
	5.	What is the form of an equation for a doubling pattern?
		A.	y = x2	B.	2y = x
		C.	y = 2x	D.	y = x + 2
		Hint