1.   Which expression increases most quickly?
    A. x + 2 B. x2
    C. 2x D. 2x
    Hint

  2.   Which situation describes the expression 2?
    A. the air temperature when a cold front moves into the area and the temperature falls 2?every half hour
    B. the population of a city that doubles every 10 years
    C. a coin collection where 2 coins are added each month
    D. areas of various rugs with side length t for the rug at stage t
    Hint

  3.   Which table describes exponential growth?
    A. B.
    C. D.
    Hint

  4.   What is the value of 5x when x = 5?
    A. 5 B. 3125
    C. 10 D. 25
    Hint

  5.   Which is the graph of y = 0.5x?
    A. B.
    C. D.
    Hint



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