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6.4 Solving Compound Inequalities I can… solve compound inequalities containing the word and and graph their solution sets. I can… solve compound inequalities containing the word or and graph their solution sets.

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Inequalities with AND The solution set is the area where it is true for BOTH inequalities. Symbol: Intersection EX. x < 2 and x -1

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Inequalities with OR The solution set is the area where it is true for ONE OR BOTH of the inequalities. Symbol: U Union EX. 2a + 1 < 11 or -2a < 2

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Examples: A.)Graph the solution set of y 5 and y < 12.

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Examples: B.)Solve 7 < x + 2 11. Then graph the solution set.

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Examples: C.)Solve and then graph the solution set. 4k – 7 25 or 12 – 9k 30.

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Assignment: 6.4 pg 342 #14-44(even), 55-56 [18]

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Do Now Solve and graph. – 2k – 2 < – 12 and 3k – 3 ≤ 21.

Do Now Solve and graph. – 2k – 2 < – 12 and 3k – 3 ≤ 21.

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