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An integer is multiplied by 1 and then 0 is added to the result.
Which two properties have been used, and what happens to the original integer?

Class 7Properties of IntegersIntegers
  • AMultiplicative identity and additive identity; it is unchanged
  • BDistributive and commutative; it doubles
  • CClosure and associative; it becomes 0
  • DCommutative and identity; it changes sign

Step-by-Step Solution

(a . Multiplying by 1 (multiplicative identity) and adding 0 (additive identity) both leave the integer unchanged.
Answer: A) Multiplicative identity and additive identity; it is unchanged

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