Final Review: Chapter 1, Review of the Real Number System

1.1: Basic Concepts

-Natural Numbers

otherwise known as counting numbers {1,2,3,4,5,6,...}

-Whole Numbers

{0,1,2,3,4,5,6,...}

-Integers

{...,-3,-2,-1,0,1,2,3,...}

-Rational Numbers

{p/q⎮p and q are integers, q≠0}

Examples:

-Irrational Numbers

{x⎮x is a real number that is not rational}

Examples: √x, -√2, pi.

-Real Numbers

{x⎮x is represented by a point on a number line}

-Additive inverse

-Number Line

-Set Builder Notation