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# Algebra 1.5R C02-L01

### Wirtz Intermediate Algebra Red Chapter 2 Lesson 1

Term | Definition |
---|---|

closure properties (p45) | For all real numbers a and b: a + b (sum) is a unique real number and ab (product) is a unique real number. |

commutative properties (p45) | For all real numbers a and b: a + b = b + a and ab = ba |

associative properties (p45) | For all real numbers a, b, and c: (a + b) + c = a + (b + c) and (ab)c = a(bc). |

terms (p46) | In the sum a + b, a and b are called this. |

factors (p46) | Numbers that are multiplied together to produce a product. |

reflexive property (p46) | If a is a real number, a = a. |

symmetric property (p46) | If a and b are real numbers, and a = b, then b = a. |

transitive property (p46) | For all real numbers, a, b, and c, if a = b and b = c, then a = c. |

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shelley.wirtz