Quadratic Function Teacher Resources

This WebMath site provides interactive problem solvers to understand the quadratic formula and solve quadratic equations by factoring. In addition to providing answers, these 'solvers' show the step-by-step method in which to get there.

This site explains how graphing can be used to solve (find the roots of) a quadratic equation. Practice problems are included.

This is an interactive activity to recognize a liner, quadratic or radical function by its algebraic expression or by its graph.

Video graphing a parabola by plotting the roots, vertex and axis of symmetry.

Find a concise explanation of how to graph quadratic equations. Several examples are given and clearly explained.

This video lesson describes and labels the parts of a cubic function.

This lesson will demonstrate how to graph a quadratic equation and locate the roots on a graphing calculator. It is 1 of 4 in the series titled "Solve Quadratic Equations by Graphing on a Calculator."

The mathematics resource includes a video tutorial about quadratics. The lesson discusses how to identify from the graph of a quadratic equation when there is only one real solution.

This lesson shows how to write the equation for a parabola when given three points. [9:22]

A visual intuition of what a quadratic inequality means.

[Free Registration/Login may be required to access all resource tools.] Learn how to complete the square in order to solve quadratic equations.

In this lesson, students will learn the main parts of a parabola and solve quadratic equations by factoring.

Here is a site that clearly and thoroughly explains how to solve quadratic equations by completing the square. The quadratic formula is derived using this method on this page. Point this site out to students who have been absent or who...

In this mini-lesson plan, students will learn about the world of functions. They will explore topics such as how to represent a function, conditions for a function, how to solve a function, types of functions, and various graphs of...

View this video tutorial to learn about inverse functions, a function that reverses all the operations of another function. [12:05]

Here is a site that clearly and thoroughly explains the graphs of the major mathematical functions. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to...

Spreadsheet software allows you to calculate numbers arranged in rows and columns for specific financial tasks. This activity allows students to create an "Employee Work/Pay Schedule" spreadsheet to reinforce spreadsheet skills. Students...

[Free Registration/Login Required] Shows students how to solve for x within a quadratic function (no factoring) and identify the root(s) of the function.

Students show comprehension of advanced mathematical concepts in Algebra I. The questions check understanding on quadratic and exponential functions.

Lesson 2 of 4 for Passport to Advanced Math. Students will build quadratic and exponential functions that model a given context; solve radical equations; work with rational expressions, including fractions with a variable in the...

This activity provides students an opportunity to discover the similarities involved in shifting the parent functions for absolute value, quadratic, cubic, radical, exponential, and logarithmic functions. Students will also be given the...

Factor quadratics of the form x squared+bx+c. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This task is intended to help students see more clearly the link between factorization of polynomials and zeroes of polynomial functions. The argument here generalizes to show that a polynomial of degree d can have at most d roots....

This is the first of a series of problems building to an understanding of an important property of polynomial functions, that a polynomial of degree d can have at most d roots. Aligns with A-APR.B.2.