1. Lesson 4

1.3. Refresher

Mathematics 20-1 Module 7

Module 7: Absolute Value and Reciprocal Functions

 

Refresher

 

This is a play button that opens the definition of reciprocal.

Review the definition of reciprocal by viewing Reciprocal at the Mathematics Glossary.


This is a play button that opens “Reciprocal of a Mixed Number."

Khan Academy - CC BY-NC-SA 3.0

Watch the video example “Reciprocal of a Mixed Number” to see the steps used to find a reciprocal.


Identify non-permissible values of rational expressions by going to Module 6: Lesson 1: Explore 3 of this course for a review.

This is a play button that opens “Graphs of Linear Equations."

Khan Academy - CC BY-NC-SA 3.0

Review graphing linear functions by watching the “Graphs of Linear Equations” video.


This is a play button that opens “Graphs of Quadratic Functions."

Khan Academy - CC BY-NC-SA 3.0

Review graphing quadratic functions by watching the video “Graphs of Quadratic Functions.”



Go back to the Are You Ready? section, and try the questions again. If you are still having difficulty, contact your teacher.