Enter your Sign on user name and password.

Forgot password?
Sign In | Subscribe
INSTRUCTORS Carleen Eaton Grant Fraser Eric Smith
Start learning today, and be successful in your academic & professional career. Start Today!
Loading video...
This is a quick preview of the lesson. For full access, please Log In or Sign up.
For more information, please see full course syllabus of Algebra 1
  • Discussion

  • Study Guides

  • Download Lecture Slides

  • Table of Contents

  • Related Books

Lecture Comments (2)

1 answer

Last reply by: Mya McCulloch
Fri Aug 31, 2012 11:34 AM

Post by Eduardo Arriaza on March 26, 2011

Wouldn'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