Lesson 1.4 Comparing and Ordering Integers Essential Question: How do you compare and order integers?

Key Vocabulary Integers: all whole numbers and their opposites Negative Integers: integers less than zero Positive Integers: integers great than zero Absolute Value: how far a number is from zero

Example 1: Graphing and Ordering Water freezes at 0°C, but some animals can resist freezing by producing a chemical called the supercooling point. Which insect has the lowest supercooling point? InsectSupercooling point (°C) Arctic Beetle-54 Gail Beetle-35 Goldenrod gallfly-9 Snow flea-19 Wooly bear caterpillar-70

Example 2: Finding the Absolute Value a.5 b.-7

Example 3: Opposites a. 6 b. -15

Example 4: Evaluating Evaluate the expression when y=-5 – a. –y – b. 17- |y|