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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 1 answerLast reply by: Mya McCullochFri Aug 31, 2012 11:34 AMPost by Eduardo Arriaza on March 26, 2011Wouldn't 4.5 satisfy this inequality?

### Compound Inequalities

• A compound inequality combines two inequalities using either “and” or “or”. First solve each inequality separately. If “and” was used, the solution set is the set of all numbers in both solution sets of the two inequalities. If “or” was used, the solution is all numbers in either or both of the solution sets of the two inequalities.

• The solution of a compound inequality can be found by simplifying each inequality algebraically and then graphing the simplified inequalities.

• Describe the solution set of a compound inequality using either a number line or set builder notation.

### Compound Inequalities

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
• Inequalities Combined by 'And' 0:12
• Three Ways to Write Solution Set
• Set Notation
• Inequalities
• Graph
• Examples
• Inequalities Combined by 'Or' 4:45
• Example
• Lecture Example 1 7:40
• Lecture Example 2 10:55
• Additional Example 3
• Additional Example 4