Ch 2: Recognizing Functions

About This Chapter

In this chapter on recognizing functions, you'll find informative lessons on quadratic functions, polynomial functions, and many other related topics. These lessons are a convenient resource to use when you're preparing to take an exam or engage in a class discussion.

Recognizing Functions - Chapter Summary

In this chapter on recognizing functions, concise lessons provide examples of quadratic, rational and linear functions. You can also get a clearer understanding of how to factor a polynomial function. After going through these mobile-friendly lessons, you should be able to confidently do the following:

  • Give the definition of a linear function
  • Provide the equation for a rational function
  • Discuss the absolute value function
  • Solve an equation with a quadratic formula
  • List properties of polynomial functions
  • Explain how to graph the square roots of functions

Refreshing your knowledge of how to recognize functions is easy with the help of our expert instructors. In addition to informative lessons, a short quiz is available to test your knowledge of each lesson. For your convenience, the quizzes link back to specific topics in the video, which means you can easily go back and review a function.

6 Lessons in Chapter 2: Recognizing Functions
Test your knowledge with a 30-question chapter practice test
What is a Linear Function? - Definition & Examples

1. What is a Linear Function? - Definition & Examples

In this lesson, you will learn the key identifying mark of linear functions. You'll also learn how to graph them with just two points and how you can use the graph to easily find your answers.

Rational Function: Definition, Equation & Examples

2. Rational Function: Definition, Equation & Examples

Rational functions are an extremely useful type of function found in mathematics. They are functions that are fractions whose numerator and denominator are both polynomials. Learn all about them in this lesson!

Absolute Value Function: Definition & Examples

3. Absolute Value Function: Definition & Examples

The absolute value function shows up in the world around us in many different areas. In this lesson, we will define the absolute value function, look at its characteristics, observe its graph, and look at some examples involving this function.

Quadratic Functions: Examples & Formula

4. 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.

Polynomial Functions: Properties and Factoring

5. Polynomial Functions: Properties and Factoring

Everything from projectile motion to trigonometric functions can be described by polynomials. Review factoring, polynomials and quadratic functions in this lesson.

Graphing Square Roots of Functions

6. Graphing Square Roots of Functions

In this lesson you will learn about the characteristics of a square root function and how to graph it. You will also examine in detail the effect the square root sign has on the independent and dependent quantities.

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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