Chapter Two:  Integers and Rational Numbers

Take notes on the following topics.

Chapter Two

Section 2.1

Section 2.2

Section 2.3

Section 2.4

Section 2.5

Section 2.6

Section 2.7

Section 2.8

Section 2.9

Section 2.10

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Section 2.1 :  Integers and the Number Line

Vocabulary

• opposites

• integers

• positive integers

• negative integers

• inequality

• absolute value

Remember:

The absolute value of a real number  x  is the distance between  x  and  0  on the number line.  The symbol | x | means the absolute value of  x.

| x | =  x, if x 0  ( means greater than or equal to.) | x | =  -x, if x < 0 In general, if x is positive or zero, | x | = x.  If  x  is a negative number, then | x | = -x.  In this case,  -x  is a positive number.

Take class notes.

Before starting your homework, rework the examples that are illustrated in this section of your textbook and the examples that I demonstrated in class. 

Then do your homework.

Write down questions (examples or concept that you do not understand).......then.............. Ask these questions in class.