Lesson 3-7 Part 2 Absolute Value Inequalities Sept. 2, 2014

Daily Learning Target I will solve inequalities involving absolute value.

Key Concept Remember: You need to think about inequalities two possible ways: “and” “or” If the original inequality is a < then we will work the inequality as an “and” inequality. If the original inequality is a > then we will work the inequality as an “or” inequality.

Key Concept cont.

Example 1

Example 2

Example 3 A company makes boxes of crackers that should weigh 213 g. A quality-control inspector randomly selects boxes to weigh. Any box that varies from the weight by more than 5 grams is sent back. What is the range of allowable weights for a box of crackers. Answer: 208 ≤ w ≤ 218

Classwork Lets take a look at some problems to practice before homework is assigned. This will be counted as a completion grade (10 points) that will need to be turned in before leaving class.

Homework Page 103 Problems: 18, 20, 21, 22, 30 Page 105 Problems: 1-6 ALL