# Ch 21: ORELA Math: Functions

Reinforce your knowledge of functions with this chapter's video lessons, then answer self-assessment questions on functions to test your comprehension. These lessons will help prepare you for related portions of the ORELA Math exam.

## ORELA Math: Functions - Chapter Summary

Review the procedures necessary to solve equations with functions in case you've forgotten some of the fundamental concepts. Explore the key terms and definitions that will help you address related questions on the ORELA Math examination. Go over the rules for composing and compounding functions. Watch these online videos for help with:

• Visualizing functions and identifying graphs of functions
• Transforming functions
• Understanding domain and range of functions and composite functions
• Performing addition, subtraction, multiplication and division operations on functions
• Explaining function notation and composition
• Describing the process of graphing a function of a function
• Confirming, graphing and writing inverse functions
• Creating symmetry and using odd and even functions

Each of the engaging video lessons includes practice problems that you can complete while preparing for the ORELA Math examination. As you study, you may ask questions of the knowledgeable lesson instructors or consult the included text transcripts of the video lessons. Watch the lessons and review functions anywhere. You can test your understanding by taking short self-assessment quizzes as you complete each lesson.

### ORELA Math: Functions Objectives

You'll appreciate having studied the information in this chapter when answering related questions in the Patterns, Algebra and Functions section of the ORELA Math examination. This section amounts to about 24% of the overall score. You should be prepared to answer 150 multiple-choice questions in the allotted four hours and 15 minutes. You can use provided reference materials and an on-screen calculator during the computer-administered examination.

14 Lessons in Chapter 21: ORELA Math: Functions
Test your knowledge with a 30-question chapter practice test
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

### Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.