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Algebra-2 Lesson 5-3 Absolute Value Inequalities
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Quiz 1-6 x > 3 and x 3 and x < 5 Graph the compound inequalities 1. 2. x ≤ 3 or x > 5
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Quiz Describe the transformation to the parent function. 3. 4. 5.
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3 If you can’t tell which direction the arrow goes, ( ) or ( ) pick a number that is between 1 and 5 and see if it makes sense. If you can’t tell which direction the arrow goes, ( ) or ( ) pick a number that is between 1 and 5 and see if it makes sense. (English): The distance between “some number (x)” and “+3” is greater than “2” “some number (x)” and “+3” is greater than “2” 51 4 Is the distance between 3 and 4 greater than 2? Is the distance between 3 and 4 greater than 2? NO! so the arrows must open outward not inward. NO! so the arrows must open outward not inward. X X
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2. Write numbers in the for letters ‘a’, ‘b’, ‘c’, ‘d’, ‘e’ Your turn: 1. Write the “English” version of: d 3. Do the numbers ‘b’ and ‘e’ have an open circle or a solid circle? circle? 4. Which direction do the arrows go? a c eb
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3 Do you have to graph it to figure it out? 5 1
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Absolute Value INEQUALITIES x – 5 > 1 x – 5 < -1
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Your turn: 5. Solve for x 6. Graph
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2 If you can’t tell which direction the arrow goes, ( ) or ( ) pick a number that is between -1 and 5 and see if it makes sense. If you can’t tell which direction the arrow goes, ( ) or ( ) pick a number that is between -1 and 5 and see if it makes sense. (English): The distance between “some number (x)” and “+2” is LESS than “3” “some number (x)” and “+2” is LESS than “3” 5 4 Is the distance between 2 and 4 LESS than 3? Is the distance between 2 and 4 LESS than 3? yESS! so the arrows must open inward not outward. yESS! so the arrows must open inward not outward. X X
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Do you have to graph it to figure it out? 6 4
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6 4
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Absolute Value INEQUALITIES x – 5 < 1 x – 5 > -1
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Your turn: 7. Solve for x 8. Solve for x
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Solving Inequalities by Graphing For what values of ‘x’ are the y-values of less than the y-values of:
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Solving Inequalities by Graphing For what values of ‘x’ are the y-values of less than the y-values of:
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