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# Algebra 1.5R C02-L01

### Wirtz Intermediate Algebra Red Chapter 2 Lesson 1

TermDefinition
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.
Created by: shelley.wirtz