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Lesson 1

1. Lesson 1

1.3. Refresher

Mathematics 20-2 M3 Lesson 1

Module 3: Quadratics

 
Refresher
 

Go to Graph and watch the animation under the “Example (Mathematics)” heading to see how a table of values is used to graph a given equation. Continue to click “Play” after each step is revealed.

 

For information on determining the domain and range of a function, watch the “Domain and Range 1” video from the Khan Academy.

 

 

This is a screenshot for “Domain and Range 1.”

Khan Academy CC BY-NC-SA 3.0



Use the applet “Introduction to Functions” to determine whether a relation is a function. Make sure that “Show mapping diagram,” “Show ordered pairs,” and “Show graph” are selected. Follow the directions in the applet to create a relation. Select the “Show function test” boxes in each section to see whether or not the relation is a function. Use the Assessment Questions to verify that you are comfortable identifying whether a relation is a function or not.

 

 

This is a screenshot for “Introduction to Functions.”

Screenshot reprinted with permission of ExploreLearning.



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