What is a Quadratic Function?

What is a Quadratic Function?

Note:

You can't go through algebra without seeing quadratic functions. The graphs of quadratic functions are parabolas; they tend to look like a smile or a frown. In this tutorial, get introduced to quadratic functions, look at their graphs, and see some examples of quadratic functions!

Keywords:

  • definition
  • quadratic function
  • parabola
  • degree 2
  • degree two
  • 2nd degree
  • type of function

Background Tutorials

  • Function Definitions and Function Notation

      • What's a Function?What's a Function?

      What's a Function?

      You can't go through algebra without learning about functions. This tutorial shows you a great approach to thinking about functions! Learn the definition of a function and see the different ways functions can be represented. Take a look!

  • Polynomials

      • How Do You Find the Degree of a Polynomial?How Do You Find the Degree of a Polynomial?

      How Do You Find the Degree of a Polynomial?

      Terms and polynomials can't run a fever, but they do have degrees! This tutorial will tell you all about the degree of a term and of a polynomial and will show you how to find it!

  • Graphs of Quadratic Functions

      • What is a Parabola?What is a Parabola?

      What is a Parabola?

      If you graph a linear function, you get a line. If you graph a quadratic function, you get something called a parabola. A parabola tends to look like a smile or a frown, depending on the function. Check out this tutorial and learn about parabolas!

Further Exploration

  • Graphing Definitions and Examples

      • What is the Standard Form of a Quadratic?What is the Standard Form of a Quadratic?

      What is the Standard Form of a Quadratic?

      Got a quadratic polynomial? Want to put it in standard form? Watch this tutorial to learn the steps it takes to make sure a quadratic polynomial is in standard form!