# Ch 9: Properties of Functions

Watch math video lessons and learn all about functions, including function notations, transformations and more. These video lessons are short and engaging and make learning easy!

## Properties of Functions - Chapter Summary and Learning Objectives

What are functions and why do you need to know about them? Is it essential to use function notation in mathematical equations? Why is this concept so important? If you are feeling overwhelmed with questions about the properties of functions, then take a deep breath, relax and watch our lessons. They will demystify this whole concept for you. To help calm your nerves before you watch the video lessons, we'll point out that a function is actually a pretty easy concept to understand.

As you start to work more with functions, you will see a need to learn how to add, subtract, multiply and divide them, so we offer lessons covering all that. You also will need to know how to compose functions, so check out our videos on this topic.

Working with functions, you're going to need to have an understanding of values that are simply not allowed in a function. Find out what a zero denominator and negative root have in common and how they relate to function values. Also, get the inside scoop on working with inverse functions, and don't pass on learning about applying function operations. Another concept that may have you rattled is transformations, which are also covered, including how to shift graphs on the x-y coordinate plane. We also include practice problems, so you can be sure you understand the concepts.

Let our lessons make math simple. Watch as our instructors explain all these concepts in an easy-to-follow way. Don't wait! Start watching now!

Final Exam
Chapter Exam

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