INSTRUCTORS Carleen Eaton Grant Fraser Eric Smith

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### Inequalities: Multiplication and Division Techniques

• If both sides of an inequality are multiplied or divided by the same positive number, the resulting inequality has the same solutions as the original one.

• If both sides of an inequality are multiplied or divided by the same negative number, the direction of the resulting inequality must be reversed. The new inequality has the same solutions as the original one.

### Inequalities: Multiplication and Division Techniques

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
• Fundamental Principle 0:11
• Example: Positive Number
• Fundamental Principle 1:35
• Example: Negative Number
• Lecture Example 1 4:05
• Lecture Example 2 5:12