Hi, what do you want to do?
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.
CK-12 Foundation
Ck 12: Algebra: Identification of Quadratic Models
[Free Registration/Login may be required to access all resource tools.] Understanding the equations of parabolas
Khan Academy
Khan Academy: Equation of a Parabola From Focus and Directrix
Given the focus and the directrix of a parabola, find its equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Parabolas and Polynomial Equations
This multimedia Learn Alberta math resource looks at how parabolas and polynomial equations are used to study an object's flight path. The accompanying interactive component lets students explore and make comparisons of the flight paths...
Texas Instruments
Texas Instruments: Curve Fitting for a Parabola
This is a TI-Navigator Activity Center file that is used as a class warm up or for checking understanding. Students are to contribute an equation of a parabola that will pass through the most number of sunflowers.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabolic Equation of an Arch
A student, in writing to Dr. Math, wants to know how to find the equation of the parabola of McDonald's arches. Dr. Math helps the student get started with the problem.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Equation of a Parabola
Dr. Math, in a reply to a student question, shows how a parabola is just a quadratic equation.
National Council of Teachers of Mathematics
The Math Forum: Exploring Parabolas
A lesson plan using the computers to help students understand the various forms of equations of parabola. The site requires students to use the computer and offers a possible assessment of the lesson.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Equations of Conics
Posed with a student question about equations of conics, Dr. Math provides some insight on the standard form of parabolas, ellipses, and hyperbolas. One example is shown.
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...
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.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Applying the Definition of a Parabola
Dr. Math responds to a student question about parabolas. The student asks a series of questions about a parabola, including how to derive the formula of a parabola from the definition, a parabola is the set of all point equal distance...
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Systems of Inequalities
Hotmath provides 21 practice problems dealing with systems of equations and inequalities. Each of the practice problems include a step-by-step guide for solving their algebraic problem.
National Council of Teachers of Mathematics
The Math Forum: Parabolas
A brief overview on calculating various measures of segments, like focus to vertex and vertex to directix, is given. Additionally, equations of parabolas in general, standard, and vertex forms are listed.
Discovery Education
Discovery Education: Web Math: Graphing Parabolas
WebMath offers a java applet that allows you to input the equation of a parabola, in one of many forms, and gives you a graph of the parabola along with an explanation of how the graph was drawn.
University of St. Andrews (UK)
University of St. Andrews: Parabola
This is a brief lesson plan on the parabola. The lesson plan also has links to related topics.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rotating Parabolas
Dr. Math, in a reply to a student question, shows how to derive the equation of a parabola for situations when the line of symmetry is not || to one of the axes.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Equation for an Arch
A student with a summertime carpenter job asks Dr. Math how to draw an arch. Dr. Math responds by showing how the equation of the parabola can be generated by having three distinct points of the parabola known.
Texas Instruments
Texas Instruments: Transforming Parabolas
1. Students will be able to review how to find the vertex of a parabola using a graphing calculator. 2. Students will be able to observe the relationship between the values of a, h and k and the graph of a parabola in vertex form. 3....
Alabama Learning Exchange
Alex: Conic Sections: Playing With Parabolas
Through a mixture of online exploration, and teacher instruction, students will discover how parabolas are formed and will be able to use the key components from a graph (vertex, focus and directrix,) to generate the equation of a graph.
Texas Instruments
Texas Instruments: Exploring Standard Form of a Quadratic Function
Students explore y=ax^2+bx+c using the transform graphing application. Teacher calculator is used with Navigator to send device settings, the equation format and initial coefficient values to all students. Worksheet includes all student...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola Given Three Points
This site gives a student a hint of how to determine the equation of a parabola when given three points on the parabola. The Dr. only hints at the solution, encouraging thinking on behalf of the student.
Texas Instruments
Texas Instruments: Exploring the Parabola and Its Equation Part 1 and @
Starting with y=x^2 going all the way to (in part 2)y=ax^2+bx+c, how do changes in the quadratic equation/function change the appearance of the parabola.