1. DAy 21 Graphing Inequalities.notebook January 25, 2013
OBJECTIVE: How do we graph inequalities?
Do Now
Solve and Check the following equations.
1.) -3(x - 4) = -15 x 3
2.) - = -2
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2. DAy 21 Graphing Inequalities.notebook January 25, 2013
NWEA
Monday 1/28 and Tuesday 1/29
Computer Lab 260
Do you remember your
usernames and passwords?
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3. DAy 21 Graphing Inequalities.notebook January 25, 2013
Homework
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4. DAy 21 Graphing Inequalities.notebook January 25, 2013
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5. DAy 21 Graphing Inequalities.notebook January 25, 2013
Anticipatory Set
1.) What numbers could you substitute for the variable in this
mathematical sentence?
x>3
2.) What numbers can not be substituted for x?
x > 3 is an INEQUALITY- a mathematical sentence that contains
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6. DAy 21 Graphing Inequalities.notebook January 25, 2013
When an inequality contains a variable, any number that makes that
inequality true is a SOLUTION OF THE INEQUALITY.
In the example x > 3, any number larger than 3 is a SOLUTION TO
THE INEQUALITY.
3.) How would you show that on a number line?
Questions:
1.) Where are the numbers greater than 3?
2.) Is 3 a solution?
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7. DAy 21 Graphing Inequalities.notebook January 25, 2013
How would you graph x ≤ -2?
Questions:
1.) Where are the numbers less than ­2?
2.) Is ­2 a solution?
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8. DAy 21 Graphing Inequalities.notebook January 25, 2013
Read over the examples to
the right and answer the
question below.
Based on the examples, how
do we graph an inequality?
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9. DAy 21 Graphing Inequalities.notebook January 25, 2013
1.) a.) Graph the following inequality:
x<6
b.) List three solutions to the inequality.
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10. DAy 21 Graphing Inequalities.notebook January 25, 2013
2.) a.) Graph the following inequality:
x ≤ -5
b.) List three solutions to the inequality.
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11. DAy 21 Graphing Inequalities.notebook January 25, 2013
Write the inequality for the following graph.
b.) List three solutions to the inequality.
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12. DAy 21 Graphing Inequalities.notebook January 25, 2013
b.) Write the inequality for the following graph.
b.) List three solutions to the inequality.
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13. DAy 21 Graphing Inequalities.notebook January 25, 2013
Before You Leave
Write an inequality from the following sentences.
Remember to define your variable.
1. No more than 18 people are allowed in the gallery at one time.
2. There are fewer than 8 fish in the aquarium.
3. The water level is at least 45 inches
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14. DAy 21 Graphing Inequalities.notebook January 25, 2013
Mr. Tjersland's Math 7
Homework: Homework Sheet
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15. DAy 21 Graphing Inequalities.notebook January 25, 2013
OBJECTIVE: How do we graph inequalities?
1.) a.) Graph the following inequality:
x<6
b.) List three solutions to the inequality.
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16. DAy 21 Graphing Inequalities.notebook January 25, 2013
2.) a.) Graph the following inequality:
x ≤ -5
b.) List three solutions to the inequality.
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