Math 10C Module 4: Lesson 3

Module 4: General Relations

 

Launch

This section checks to see if you have the prerequisite knowledge and skills to be able to complete this lesson successfully. Before you begin working with functions, it is important that you have a good understanding of relations.

Are You Ready?

Complete these questions in your course folder (binder). If you are experiencing difficulty, you may want to use the information and the multimedia in the Refresher section to clarify concepts before completing these exercises.

Print and Complete

Lesson 3: Are You Ready?

Once you have completed these exercises to the best of your ability, use the provided answer link to check your work.
Answers
If you feel comfortable with the concepts covered in the questions, move forward to Discover. If you experienced difficulties or want more practice, use the resources in Refresher to review these important concepts before continuing through the lesson or contact your teacher.

 

Refresher

 

The purpose of this section is to provide you with some resources to review in preparation for the lesson ahead. These resources may include videos, interactive applets, mini-lessons, and flash games to help you recall previously learned concepts. You can use these resources either before or after you try the questions in Are You Ready? Your teacher may also direct you to this section to review specific concepts.

 

For review, watch the video titled “Graphic Representations,” which shows an example of how you can interpret the independent and dependent variables in a given context. **Scroll down to find the video**


You may also want to review the first part of the Explore section in Lesson 2 to review how to identify dependent and independent variables.

 

A relation is a set of ordered pairs. The domain of a relation consists of all values of the independent variable. The range of a relation consists of all values of the dependent variable.

Watch 'Domain and Range of Relations' on a graph to practice finding domain and range. Note he writes his answers in set notation but is not careful about the formatting we like.