Khan Academy Static

Quadratic_equations_quadratic_formula

Learn how to solve any quadratic equation with the most general tool of all, the quadratic formula!

Transforming_graphs_of_quadratic_functions

Learn how function transformations affect the graphs of quadratic functions.

Graphing_quadratic_functions

In this tutorial, we will learn how to graph quadratic functions given in different forms.

Interpreting_quadratic_models

Use all the knowledge you gained about quadratic equations and functions in order to solve some word problems about real world contexts that are modeled by quadratic functions.

Quadratic_equations_factoring

In this tutorial, you'll learn some pretty elaborate ways of solving quadratic equations, by harnessing the mighty strength of algebra.

Features_of_quadratic_functions

Learn about the features of quadratic functions, and how to find them given the formula of the function. Also learn about the different forms of quadratic functions: standard, vertex, and factored.

Quadratic_equations_completing_the_square

You're already familiar with factoring quadratics, but have begun to realize that it only is useful in certain cases. Well, this tutorial will introduce you to something far more powerful and general. Even better, it is the bridge to understanding and proving the famous quadratic formula.

Quadratic_equations_taking_square_root

In this tutorial you will learn about the most basic way of solving quadratic equations.

Systems_of_quadratic_equations

Learn how to solve systems of two equations in two variables, where at least one of the equations is quadratic.