INTEGERS AND ABSOLUTE VALUE SECTION 2.1

KEY TERMS Integer Negative Integer Positive Integer Absolute Value All numbers consisting of negative, positive and zero Negative Integer Integer that is less then zero Positive Integer Integer that is greater then zero Absolute Value Distance a number is from zero Opposite Two numbers that are the same distance from zero

USING A NUMBER LINE Click on the picture to view using a number line

ORDERING INTEGERS The further to the left of zero the smaller the number The further to the right of zero the larger the number. A negative number is always less then a positive number A negative number is always less then zero

EXAMPLE Order the numbers from least to greatest -7, 2, -1, 0, -2 Determine which number is the smallest. The further from zero the smaller the number Then work your way up from there -7, -2, -1, 0 , 2

Absolute Value The absolute value of a number can be considered as the distance between 0 and that number on the real number line.

OPPOSITES Numbers that are the same distance from zero