Class Starter 8-19-13

1. Class Starter 8-19-13

2. Integers & Absolute Value With sea level as the starting point of 0, you can express 86 meters below sea level as 0 – 86, or – 86.

3. Negative Numbers & Integers A negative number is a number less than zero. Negative numbers like –86, positive numbers like +125, and zero are members of the set of integers.

4. The Set of Integers Integers can be represented as points on a number line. This set of integers can be written as {…, -3, -2, -1, 0, 1, 2, 3,…} where … means it continues to infinity in both directions.

5. Examples

6. Coordinates To graph integers, locate the point named by the integers on a number line. The number that corresponds to a point is called the coordinate of that point. Notice that 5 is to the left of 4 on the number line. This means that 5 is less than 4.

7. Inequalities A sentence that compares two numbers or quantities is called an inequality. They contain symbols like and .

10. Absolute Value

11. Expressions with Absolute Values

15. Assignment – Integers & Absolute Value Do #4-56 even, Omit #32,48,50