Ch 5: Chapter 5: Graphs and Functions

About This Chapter

The Graphs and Functions chapter of this Prentice Hall Algebra I Textbook Companion Course helps students learn the essential lessons associated with graphs and functions. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Graphs and Functions textbook chapter.

How It Works:

  • Identify the lessons in the Prentice Hall Graphs and Functions chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the algebra topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • How to interpret line graphs
  • The vertical line test
  • How to graph functions
  • Direct variation equations
  • Equations of inverse variation
  • Arithmetic sequences

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7 Lessons in Chapter 5: Chapter 5: Graphs and Functions
Test your knowledge with a 30-question chapter practice test
Reading and Interpreting Line Graphs

1. Reading and Interpreting Line Graphs

Watch this video lesson to find out how useful line graphs can be and how much information you can gain just from looking at one. Learn how you can apply that information in your own life to help you make better decisions.

What is a Function? - Applying the Vertical Line Test

2. What is a Function? - Applying the Vertical Line Test

Equations come in all shapes and sizes. Trying to determine which equations are functions can be difficult. You can apply the vertical line test to a graph to quickly tell whether or not it is a function.

Graph Functions by Plotting Points

3. Graph Functions by Plotting Points

Let's say you have a function. What does it look like? How do you graph it? In this lesson, we'll learn how to graph functions by determining and plotting points.

Graphing Basic Functions

4. Graphing Basic Functions

Graphs are just like maps - when you know the language! Review how locations have x and y coordinates similar to latitude and longitude, and how to plot points in the Cartesian plane.

Solving Equations of Direct Variation

5. Solving Equations of Direct Variation

In the real world, we come across a lot of problems that vary directly with each other. You will learn how to solve these types of direct variation problems in this video lesson.

Solving Equations of Inverse Variation

6. Solving Equations of Inverse Variation

After watching this video lesson, you will be able to identify problems where you can use the formula for inverse variation to solve them. Learn what is involved and how easy they are to solve.

How to Find and Classify an Arithmetic Sequence

7. How to Find and Classify an Arithmetic Sequence

Arithmetic sequences are everywhere, and with a few tricks you learn here, you could end up looking like a psychic the next time you go to a movie or a football game!

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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