Ch 9: Chapter 9: Exponential Functions

About This Chapter

The Exponential Functions chapter of this Holt McDougal Algebra I Companion Course helps students learn the essential lessons associated with exponential functions. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Exponential Functions textbook chapter.

How It Works:

  • Identify the lessons in the Holt McDougal Exponential Functions chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the exponential functions 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 about:

  • Categories and identification of geometric sequences
  • Calculations with geometric sequences
  • Characteristics of exponential functions
  • Differences between exponential growth and decay
  • Calculations with compounding interest formulas
  • Exponential, linear and quadratic models
  • How exponential functions differ from linear and quadratic ones

Holt McDougal is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with

5 Lessons in Chapter 9: Chapter 9: Exponential Functions
Test your knowledge with a 30-question chapter practice test
Finding and Classifying Geometric Sequences

1. Finding and Classifying Geometric Sequences

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Working with Geometric Sequences

2. Working with Geometric Sequences

In this video lesson, we'll learn how to recognize when a sequence of numbers is a geometric sequence, how to find the common ratio and how to expand a sequence to as many numbers as we want!

What Is an Exponential Function?

3. What Is an Exponential Function?

Brand new technologies don't always catch on right away because they can be expensive and don't always work as well as they should. But once the price comes down, and they start to work better, it doesn't take very long before it seems like everyone has one. Learn about the numbers behind this, exponential functions!

Exponential Growth vs. Decay

4. Exponential Growth vs. Decay

How is it that it only takes four years for our computer to go from top-of-the-line to almost worthless? Well, it has something to do with what's called exponential decay, which we'll learn about here!

Compounding Interest Formulas: Calculations & Examples

5. Compounding Interest Formulas: Calculations & Examples

Compound interest is a great way to have your money work for you. In this lesson, find out the formula for calculating compound interest and practice using the formula with several examples.

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

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