1. 2-8 COURSE 2 LESSON 2-8 (For help, go to Lesson 1-6.) Compare. Use, or =. 1.0 – 22.| – 6| – 33.14 –14 4.23 05. – 4 56.–17 –18 7.7 –128.10 |–10|9.5 –1 Graphing and Writing Inequalities

2. Solutions 1. 0 > –2 2. |–6| > –3 3.14 > –144.23 > 05.–4 –18 7.7 > –128.10 = | –10 |9.5 > –1 COURSE 2 LESSON 2-8 2-8 Graphing and Writing Inequalities

3. Tell whether each number is a solution of k > –6: –8, –6, 0, 3, 7. COURSE 2 LESSON 2-8 The numbers 0, 3, and 7 are solutions of k > –6. false false true true true The numbers –8 and –6 are not solutions of k > –6. –8 > –6 –6 > –6 0 > –6 3 > –6 7 > –6 Replace k with each number. 2-8 Graphing and Writing Inequalities

4. Graph the solution of each inequality on a number line. a. r 2 COURSE 2 LESSON 2-8 < – b. a 0 > – c. j < 1 d. m > –5 Use a closed circle at 2 to show that r can equal 2. Use a closed circle at 0 to show that a can equal 0. Use an open circle at 1 to show that j cannot equal 1. Use an open circle at –5 to show that m cannot equal –5. 2-8 Graphing and Writing Inequalities

5. Write an inequality for each graph. a. COURSE 2 LESSON 2-8 b. – < – > Since the circle at –1 is closed, use or. y –1 Since the graph shows values equal to or greater than –1, use. > – – > z < –4 Since the graph shows values less than –4, use <. Since the circle at –4 is open, use. 2-8 Graphing and Writing Inequalities

6. You must be at least 18 years of age to vote in a presidential election in the United States. Write an inequality for this requirement. COURSE 2 LESSON 2-8 The inequality is a 18. > – 2-8 > – Words age isgreater than or equal to 18 years Let a = age in years. Inequality a 18 Graphing and Writing Inequalities

7. Write an inequality for each verbal statement. Graph the solution. 1.A dog weighs less than 25 pounds. 2.You must be at least 18 to vote. COURSE 2 LESSON 2-8 2-8 v 18 > – d < 25 Graphing and Writing Inequalities