Section 2.4 Clicker Problems

  1. Which of these is a relation?

    A.
    B.
    C.
    D. All of the above




  2. Which of these is a NOT function?

    A.
    B.
    C.
    D. All of the above




  3. Correctly complete the sentence: A function is relation...

    A. if its graph passes the horizontal line test.
    B. if its graph passes the vertical line test.
    C. ...uh, always.
    D. ...uh, never.




  4. Let , where is a whole number. Evaluate .

    A.
    B.
    C.
    D. is not defined.




  5. What is the domain of ?

    A.
    B.
    C.
    D.