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

Bookmark and Share

Start Learning Now

Our free lessons will get you started (Adobe Flash® required).
Get immediate access to our entire library.

Sign up for

Membership Overview

  • Unlimited access to our entire library of courses.
  • Search and jump to exactly what you want to learn.
  • *Ask questions and get answers from the community and our teachers!
  • Practice questions with step-by-step solutions.
  • Download lesson files for programming and software training practice.
  • Track your course viewing progress.
  • Download lecture slides for taking notes.
  • Learn at your own pace... anytime, anywhere!

Inverse Variation

  • An inverse variation is a relation between two variables x and y in which their product is always equal to some nonzero constant k, called the constant of variation. We say that y varies inversely as x.

  • The graph of an inverse variation consists of two separate curves or branches. The graph is undefined for either x = 0 or y = 0. The graph gets very large in absolute value as x gets close to 0. As x gets very large in absolute value, the graph gets close to the x-axis.

  • In many problems, information is given about values of x and y that satisfy a particular inverse variation. Use these values to find the constant k. Then use k to find a missing value corresponding to another given value.

Inverse Variation

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
  • Inverse Variation 0:23
    • Constant of Variation
  • Graphing Inverse Variation 1:08
    • Example: Hyperbola
  • Product Rule 3:54
  • Lecture Example 1 5:31
  • Lecture Example 2 7:43
  • Additional Example 3
  • Additional Example 4