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Graphing Linear inequalities. Practice Graphing.

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Presentation on theme: "Graphing Linear inequalities. Practice Graphing."— Presentation transcript:

1 Graphing Linear inequalities

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3 Practice Graphing

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6  Writing Inequalities from real life situations: Example: The girls soccer team wants to raise $2000 to buy new goals. They sell sodas for $1 and hotdogs for $1.25. How many of each item do they need to sell to make enough money to buy the goals? A. Write an inequality to represent the situation x= # of sodas sold and y=# of hotdogs sold x($1)+y($1.25) ≥ $2000 (Discuss why this inequality makes sense) B. Graph this inequality Since the inequality is in standard from lets graph it by using x-y intercepts C. Analyze the solution Any coordinates in the shaded area are solutions. The closer the coordinate is to the line to closer the total will be to $2000. The farther above the coordinate is from the line the more the amount will be over $2000. # of hotdogs sold # of sodas sold Each line on the graph is 400 units

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