Lesson 7.6 Systems of Inequalities.notebook
February 17, 2012
7.6 ­ Systems of Inequalities
Objective:
Be able to solve systems of linear inequalities by graphing
In systems of equations, solutions are the points where our lines cross.
In systems of inequalities, solutions are the shaded regions that overlap.
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Lesson 7.6 Systems of Inequalities.notebook
February 17, 2012
3. Graph the system of inequalities
y < ­1/3x +7
y > ­x + 1
4. Graph the system of inequalities
y > ­x+5
y < 3x ­ 4
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Lesson 7.6 Systems of Inequalities.notebook
February 17, 2012
5. Graph the system of inequalities
y < 3x + 4
­3x ­2y > 6
6. Graph the system of inequalities
y > 5
y < 2x ­ 3
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Lesson 7.6 Systems of Inequalities.notebook
February 17, 2012
7. Write a system of inequalities for this graph.
8. Write a system of inequalities for this graph.
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Lesson 7.6 Systems of Inequalities.notebook
February 17, 2012
A grandmother wants to spend at least $40, but no more than $80 on school clothes for her grandson. T­shirts sell for $10 and pants sell for $20. How many T­shirts and pants could she buy?
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