Ch 15: TExES Math 4-8: Functions

About This Chapter

Get ready to answer questions related to functions on the TExES Math 4-8 exam. Our chapter's resources, including video lessons and self-check assessments, are designed to help you refresh crucial skills evaluated on the exam.

TExES Math 4-8: Functions - Chapter Summary

This chapter's videos and text transcripts can be used to review the fundamentals of fractions. You'll have opportunities to complete practice problems as you solidify your understanding of the notation and identification of functions and how to shift graphs on a plane in transformations as you prepare for the TExES Math 4-8 exam. The video lessons in this chapter will enable you to complete these objectives:

  • Explain function domain and range
  • Add, subtract, multiple and divide functions
  • Compose functions
  • Define inverse functions
  • Provide an introduction to functions
  • Differentiate between linear and nonlinear functions
  • Give examples of quadratic functions
  • Solve equations of inverse variation

Let our experienced instructors guide you through each topic in order to help you prepare for the test. You may jump to specific video sections and use the text transcripts to review the concepts you most need to study. Each lesson is accompanied by a short self-assessment quiz so you can gauge your knowledge before test day.

10 Lessons in Chapter 15: TExES Math 4-8: Functions
Test your knowledge with a 30-question chapter practice test
Functions: Identification, Notation & Practice Problems

1. Functions: Identification, Notation & Practice Problems

A function is simply a rule that takes one number and turns it into another. But some special conditions must apply for it to be a true mathematical function. Learn about those conditions and how we write functions here!

Transformations: How to Shift Graphs on a Plane

2. Transformations: How to Shift Graphs on a Plane

What is a transformation? Well, it's something that transforms one function into another! To see what I mean and how that looks, check out this lesson!

What Is Domain and Range in a Function?

3. What Is Domain and Range in a Function?

The domain and range are the possible outputs and inputs of a function. In this lesson, learn about what might restrict the domain and how to figure out the domain and range from a graph.

How to Add, Subtract, Multiply and Divide Functions

4. How to Add, Subtract, Multiply and Divide Functions

Adding, subtracting, multiplying and dividing functions is about as simple as substituting in expressions and then just doing whichever operation it asks you to do. Check out this video lesson to see some examples of this and learn just how easy it is!

How to Compose Functions

5. How to Compose Functions

Function composition is the process of putting two or more functions together. This video lesson will explain how this process works and also show you how to evaluate functions that have been composed.

Inverse Functions

6. Inverse Functions

Inverse functions are two functions that do exactly opposite things. Check out this lesson to learn about how to write inverse functions, find inverse functions, and predict whether or not they exist.

Introduction to Functions

7. Introduction to Functions

Whether you're new to functions or just confused by them, this lesson covers the basic underlying concepts. Simple explanations and references to the real world make it easy to understand.

Linear and Nonlinear Functions

8. Linear and Nonlinear Functions

After watching this video lesson, you'll be able to tell the differences between linear and nonlinear functions. You'll also be able to identify both types just by looking at graphs.

Quadratic Functions: Examples & Formula

9. Quadratic Functions: Examples & Formula

Learn what sets quadratic functions apart from all other functions. Learn how you can spot a quadratic just by looking at its graph. Also learn the two formulas that will help you when working with them.

Solving Equations of Inverse Variation

10. 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.

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.
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Other Chapters

Other chapters within the TExES Mathematics 4-8 Exam (115): Study Guide & Review course