Graphing Inequalities Teacher Notes Supplies Needed: graph paper rulers calculators Northwest Gift Company Task apples, pears, boxes and baskets cut from the task Vocabulary 2/1/2011 ©Evergreen Public Schools 2011
2-7 Solving Equations With Algebra Tiles powerpoint Learning Target I can write and solve inequality word problems with two variables by graphing. What do you already know about this target? M1.1.C Solve problems that can be represented by a system of two linear equations or inequalities. M1.3.E Write and solve systems of two linear equations and inequalities in two variables. ©Evergreen Public Schools 2011
©Evergreen Public Schools 2011 Launch Graph the inequality y ≥ x + 5 How might you start? Is (2, 4) a solution? Is (-1, 5) a solution? How do you know? Start by graphing the line y = x + 5. Graph a solid line since ≥. Test a point to determine which side to shade. (0, 0) is a good point to test. ©Evergreen Public Schools 2011
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Shading Investigation ©Evergreen Public Schools 2011