National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola Equation
Dr. Math, in a reply to a student's question, describes how to obtain the equation of a parabola.
Other
Georgia Perimeter College: Parabolas
This resource provides an examination of parabolas, both vertical and horizontal, and parabolic functions. It includes six examples and a chart showing how changes in the equation coincide with changes in the graph.
Texas Instruments
Texas Instruments: Investigating the Parabola in Vertex Form (Y = Ax2
In this activity, students investigate the standard form of the quadratic function, y = ax^2 + bx + c. They investigate the changes on the graph of a quadratic equation that result from changes in A, B, and C. They also locate the vertex...
Paul Dawkins
Paul's Online Notes: Algebra: Common Graphs
Students investigate how to graph a wide variety of equations and functions. Topics explored are lines, rational functions, parabolas, ellipses, and transformations. Class notes, definitions, and examples with detailed solutions are...
Texas Instruments
Texas Instruments: Graphs of Quadratic Functions in Vertex Form
TI Explorations books has a great activity for TI InterActive! in graphing parabolas in vertex form. What if you don't have TI InterActive! or a lab to take your students, but you do have a class set of TI-83 or TI-84. This activity...
Texas Instruments
Texas Instruments: Writing Equations of Parabolas in Vertex Form
Students use their knowledge of the vertex form of a quadratic equation to graph parabolas, given a specific move to make.
University College London
University College London: The Graph of Y = Ax Squared + Bx + C
Provides a walkthrough of graphs of quadratic functions, including what factors "shift" or otherwise affect the parabola.
Khan Academy
Khan Academy: Graph Quadratics in All Forms
Graph quadratic functions given in any form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: F if.c.7.a, a sse.b.3, F if.c.7: Graphs of Quadratic
During this task, students will realize that equivalent expressions produce the same graph. The activity will lead to discussions about the value of different forms of equations. Aligns with F-IF.C.7.a, A-SSE.B.3, and F-IF.C.7.
Oswego City School District
Regents Exam Prep Center: Parabolas
Students will learn about parabolas and how to graph them. Use the given lesson plan and examples to help support instruction and solve the practice problems.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Parabola
Thirty-two problems present a variety of practice working with parabolas. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check...
Other
Algebra Class: Solving and Graphing a Quadratic Equation
Math teacher provides a unit on quadratic equations in which she explains the concepts of solving and graphing quadratic equations through numerous examples and graphs. Hyperlinks are available to each step that ultimately leads to...
Cool Math
Coolmath: Intro to Graphing Parabolas
Learn how to graph parabolas with this quick tutorial.
Cool Math
Coolmath: Graphing Parabolas Part 2
Find out how to graph parabolas in this second tutorial.
Cool Math
Coolmath: Graphing Parabolas Part 4
Find out how the equations shift the shape of the parabola.
Cool Math
Coolmath: Graphing by Completing the Square Intro
This algebra lesson introduces how to complete the square in a parabola.
Lawrence Hall of Science
The Math Page: Topics in Pre Calculus: Basic Graphs
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...
Cool Math
Coolmath: Making the Connection Between Graphing and Solving
Description and examples of the connection between solving and graphing quadratics.
CK-12 Foundation
Ck 12: Algebra: Graphs of Quadratic Functions in Intercept Form
[Free Registration/Login may be required to access all resource tools.] Understanding the graphs of a parabola given equations. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
Concord Consortium
Concord Consortium: Quadratic Functions in Vertex Form
Given the equation of a quadratic function in vertex form, students learn to identify the vertex of a parabola from the equation, and then graph the parabola.
CK-12 Foundation
Ck 12: Algebra: Quadratic Functions and Their Graphs
[Free Registration/Login may be required to access all resource tools.] Learn the anatomy of the graph of a quadratic function.
Interactive Mathematics
Interactive Mathematics: Find Equation of a Quadratic Function From Its Graph
A detailed explanation of how to find a quadratic equation from its graph using different methods, including using software.