17. Lesson 1-2 Absolute Value Integers - the set of whole numbers and their opposites. Which are examples of Integers? 9 yes -8 yes 0 27.123 no, not.

17

Lesson 1-2 Absolute Value

Integers - the set of whole numbers and their opposites.

Which are examples of Integers?

9

yes

-8

yes

0

yes

27.123

no, not a whole number or its opposite

yes because it equals 5

No, not a perfect square

25

26

-5 -4 -3 -2 -1 0 1 2 3 4 5

Integers can be represented as points on a number line.

Write Integers for Real-Life Situations

A 15 yard loss

-15

3 inches above normal

+3

10 degrees below zero

-10

A gain of $50

+50

-5 -4 -3 -2 -1 0 1 2 3 4 5

Integers can be represented as points on a number line.

Compare two integers

What are the inequality symbols for:

______Greater than

______Less than

______Greater than or equal to

______Less than or equal to

><

15 _____ 29

-8 _____ 0

-3 ______ -7

6 ______ -87

>

<<

>

-5 -4 -3 -2 -1 0 1 2 3 4 5

Integers can be represented as points on a number line.

Absolute Value - The distance a number is from zero on a number line.

The symbol for absolute value is two vertical bars on either side of the number.

7Evaluate: 7= 7 = 7

23 = -23

7 12 7 4