1.   If-then statements are also called ______________.
    A. reasons B. conditionals
    C. hypotheses D. conclusions
    Hint

  2.   Identify the hypothesis of the following if-then statement.
If Ralph does his math homework, then he will get a good grade on the quiz.
    A. He will not get a good grade on the quiz.
    B. Ralph does his math homework.
    C. Ralph may do his math homework.
    D. He will get a good grade on the quiz.
    Hint

  3.   What is a valid conclusion to the following hypothesis?
If there are two points...
    A. There are no lines containing both points.
    B. There are an infinite number of lines containing both points.
    C. There are two lines containing both points.
    D. There is one line containing both points.
    Hint

  4.   A conditional statement consists of a __________ .
    A. counterexample B. conclusion only
    C. hypothesis only D. hypothesis and a conclusion
    Hint

  5.   Which values are a counterexample to the given statement?
If x × y = 0, then x must be 0.
    A. x = -1, y = 1 B. x = 5, y = 0
    C. x = 0, y = 0 D. x = 0, y = 1
    Hint



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