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INSTRUCTORS Carleen Eaton Grant Fraser Eric Smith

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For more information, please see full course syllabus of Algebra 1
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Lecture Comments (1)

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Post by julius mogyorossy on September 5, 2011

I think it should be 0 not greater than 4, to be consistent with what he said earlier, and later.

Graphing Inequalities with Two Variables

  • The graph of an inequality in two variables is a half plane bounded by a straight line.

  • If the inequality is strict (< or >), then draw the boundary as a dashed line, otherwise draw it as a solid line.

  • Use a test point, normally the origin, to determine which half plane is the solution of the inequality. Shade that region.

Graphing Inequalities with Two Variables

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Graph 0:22
    • Half-Plane
    • Boundary
  • Technique for Graphing 3:14
    • Example
    • Dashed Line
    • Solid Line
  • Technique for Graphing, cont. 8:58
    • Example
  • Lecture Example 1 12:19
  • Lecture Example 2 15:48
  • Additional Example 3
  • Additional Example 4