Lesson 2-1 Graphing and Writing Inequalities Obj: The student will be able to 1) Identify solutions of inequalities in one variable 2) Write and graph inequalities in one variable HWK: p 103 18-21 all, 22-25 all, 26-30 even, 42-45 all Vocab: 1) inequality 2) solution of an inequality Notes: > < = open dot ( ) ≥ ≤ = closed dot ( )

Ex 1) Describe in words the solutions of 3 + x ≤ 9 Ex 1) Describe in words the solutions of 3 + x ≤ 9. Test values for x that are positive, negative and 0. x x + 3 3 + x ≤ 9 solution??

Graph each inequality Ex 2) b < -1.5 Ex 3) m ≥ 3 Ex 4) 2² - 4 ≥ w

Write an inequality shown by each graph Ex 5) Ex 6)

Ex 7) The members of a light weight crew team can weigh no more than 165 pounds each. Define a variable and write an inequality for the acceptable weights of the team members. Graph the solutions.