1.   Which statement is true about the graph shown below?
   
    A. The relation is a function. B. The range is {-3, -2, 0, 1}.
    C. The relation is not a function. D. The domain is {-3, 2, 4}.
    Hint

  2.   Choose the graph that is not a function.
    A. B.
    C. D.
    Hint

  3.   Choose the relation that is a function.
    A. B.
    C. D.
    Hint

  4.   In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true?
   
    A. The relation is a function because the range values increase.
    B. The relation is not a function because only a line can be a function.
    C. The relation is not a function because there are two y values for some x values.
    D. The relation is a function because for each x value, there is exactly one y value.
    Hint

  5.   Graph the relation represented by y = x2x + 1.
    A. B.
    C. D.
    Hint



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