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

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

Transcript of 9-5 Inequalities in Two-Variables 9P6: Use inequalities.

Page 1: 9-5 Inequalities in Two-Variables 9P6: Use inequalities.

9-5 Inequalities in Two-Variables

9P6: Use inequalities

Page 2: 9-5 Inequalities in Two-Variables 9P6: Use inequalities.

• 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