Solving Systems of Linear Inequalities Word Problems with Graphs

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What is one point that lies in the solution set of the system of inequalities graphed?

• (0, 4)

• (-4, 1)

• (2, 4)

• (4, -1)

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• Systems of Equations Word Problems

• Linear Inequalities - just one graph

• Systems of Linear Inequalities - multiple graphs

• Linear Inequalities Word Problems

Write the system of inequalities
Eiko is drawing caricatures at a fair for 8 hours (480 minutes). She can complete a small drawing in 15 minutes and charges $10 for the drawing. She can complete a larger drawing in 45 minutes and charges $25 for the drawing. Eiko hopes to make at least $200 at the fair. 

• 10x+15y≤480
  45x+25y≥250

• 10x+25y≤200
  15x+45y≤480

• 10x+25y>200
  15x+45y<480

• 10x+25y≥200
  15x+45y≤480

Which system of inequalities best describes the graph?

Solve the system of inequalities by graphing.

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What is the inequality represented by the RED region of the graph?

Which system of inequalities is represented by this graph?

• y < -3x + 3 and y > -3x - 1

• y ≥ -3x + 3 and y ≤ -3x - 1

• y ≤ -3x + 3 and y ≥ -3x - 1

• y > -3x + 3 and y < -3x - 1

Which system of inequalities matches the graph?

• y > 2x - 4
  y < 2

• y < 2x - 4
  y < 2

• y > 2x - 4
  y <  2 

• y < 2x - 4
  y <   -2

Which system of inequalities is described by this graph?

• y < x−2 
  y < 3

• y > -x+2
  y > 3

• y < -x+2
  y < 3

• y < -x+2
  y > 3