1.   State the domain of the relation {(1, 6), (-2, 3), (5, 7), (5, 9)}.
    A. {3, 6, 7, 9} B. {-2, 1}
    C. {5} D. {-2, 1, 5}
    Hint

  2.   State the range of the relation {(1, 6), (-2, 3), (5, 7), (5, 9)}.
    A. {3, 6, 7, 9} B. {3, 6, 7}
    C. {3, 6, 9} D. {1, -2, 5}
    Hint

  3.   Which graph represents a function?
    A. B.
    C. D.
    Hint

  4.   Is the relation {(3, 4), (3, 7), (-6, 4), (4,4)} a function? State why or why not.
    A. no; values in the domain have more than one value in the range.
    B. yes; values in the domain have one value in the range.
    C. no; values in the range have more than one value in the domain.
    D. yes; values in the domain have more than one value in the range.
    Hint

  5.   Is the relation {(-3, 2), (-3, -6), (2, 4), (3, 4)} a function?
    A. yes; values in the domain have more than one value in the range.
    B. no; values in the range have more than one value in the domain.
    C. no; values in the domain have more than one value in the range.
    D. yes; values in the domain have one value in the range
    Hint



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