Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Is the set of IRRATIONAL numbers is closed under the
operation of MULTIPLICATION? Examples: a. | Yes; it is closed. | b. | No; it is not
closed. |
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2.
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Which counter example would show that the set of POLYNOMIALS is
NOT closed under the operation of DIVISION?
a. | 
| c. |  | b. |  | d. | A counter example is NOT possible because the
set of Polynomials is closed under the operation of DIVISION. |
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3.
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Is the set of POLYNOMIALS is closed under the operation of
MULTIPLICATION? Examples: a. | Yes; it is closed. | b. | No; it is not
closed. |
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4.
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For which operation are both the set of INTEGERS and the set of
POLYNOMIALS NOT closed?
a. | addition
| c. | multiplication
| b. | subtraction
| d. | division
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5.
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Which classification correctly describes the following number?  a. | Rational Number | b. | Irrational Number |
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