Warm-Up 3.3

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Warm-Up 3.3
1) Graph y lt -x 1
2) Graph the system.
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3.3 Systems of Linear Inequalities

• What does the graph of a system of inequalities
  tell you?
• Where is the answer found for a system of
  inequalities?

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Graphing a System of Linear Inequalities

• Graph the line that corresponds to the
  inequality. Use a dashed line for an inequality
  with lt or gt and a solid line for an inequality
  with or .
• Lightly shade the half-plane that is the graph of
  the inequality. Colored pencils may help you
  distinguish the different half-planes.
• The graph of the system is the region common
  to all of the half-planes.

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Example 1
Graph the system.
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Example 1
Graph the system.
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Example 2
Graph the system.
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Example 2
Graph the system.
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Practice
Graph the system.
1)
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Example 3
Write the system of inequalities graphed below.
x lt 3
y lt 2x 6
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Warm-Up
Graph the system.
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• What does the graph of a system of inequalities
  tell you?
• Where is the answer found for a system of
  inequalities?

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Assignment 3.3

• Page 159, 12-14, 21-26, 28-46 even