1.   Determine the converse of the following if-then statement.
If the flowers are yellow, then they are daffodils.
    A. The flowers are not yellow.
    B. The flowers are not daffodils.
    C. If the flowers are daffodils, then they are yellow.
    D. If the flowers are not yellow, then they are not daffodils.
    Hint

  2.   To show that a conjecture is false, you need to provide one _____.
    A. guess B. possibility
    C. theorem D. counterexample
    Hint

  3.   Identify the hypothesis in the following algebraic statement:
If 3x + 10 = 13, then x = 1.
    A. 3x B. x = 1
    C. 3x + 10 D. 3x + 10 = 13
    Hint

  4.   A conditional statement consists of a __________ .
    A. hypothesis only B. conclusion only
    C. counterexample 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 = 5, y = 0 B. x = 0, y = 1
    C. x = 0, y = 0 D. x = -1, y = 1
    Hint



Glencoe
The McGraw-Hill Companies