1.   What is true about the graphs of y = 2x2 and y = -2x2?
    A. y = 2x2 opens to the left and y = -2x2 opens to the right.
    B. y = 2x2 opens downward and y = -2x2 opens upward.
    C. y = 2x2 opens upward and y = -2x2 opens downward.
    D. y = 2x2 opens to the right and y = -2x2 opens to the left.
    Hint

  2.   Consider the function y = 2x2 + 3. Which ordered pairs from the set
{(-4, 35), (-3, 20), (-2, 11), (5, 52)} are solutions?
    A. {(-4, 35), (-3, 20)}
    B. {(-4, 35), (5, 52)}
    C. {(-2, 11), (-3, 20)}
    D. {(-4, 35), (-2, 11)}
    Hint

  3.   What is the multiplicative inverse of x?
    A. B. x
    C. x × 1 D. 1 × x
    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. 90 zloty B. 63 zloty
    C. 82 zloty D. 75 zloty
    Hint

  5.   What is the form of an equation for a doubling pattern?
    A. y = x2 B. y = 2x
    C. 2y = x D. y = x + 2
    Hint



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