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9-5 Inequalities in Two-Variables 9P6: Use inequalities

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Inequalities 1. Graph using Slope (m) and y intercept (b) 2. Decide if line is solid ( ≥ or ≤ ) or dashed ( > or < ) 3. Shade ALL Solutions ( > or ≥ ) Above line ( < or ≤ ) Below Line

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Example 1: y < 2x -1

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Example 2: y ≥ - x + 2

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Example 3: x < 3

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Example 4: 4 ≤ 2x + y

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To write an inequality for a graph Start with y mx +b Fill in alligator (inequality) and m and b

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Example 7: Doritos cost $3.00 a bag and 2 Liters cost $1.00. If you are having a party and don’t want to spend more than $20, How many of each can you buy?

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Assignment Day 1: WS Day 2: 9-5/419-420/4-32 m4,34-39,46-53

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