1. 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
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2. 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.
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3. ©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.
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4. ©Evergreen Public Schools 2011
Explore
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5. Shading Investigation
©Evergreen Public Schools 2011