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: Advanced Graphing Sideways Parabolas
This algebra lesson explains how to graph sideways parabolas.
CK-12 Foundation
Ck 12: Interactive Geometry: 10.3 Equations of Parabolas
Learn about equations of parabolas.
Other
Institute of Physics: Testing Projectile Motion With a Drawn Parabola
This is a demonstration which shows that motion can be predicted through testing projectile motion with a drawn parabola.
Merriam-Webster
Merriam Webster: Dictionary Illustration: Parabola
A labeled illustration of a parabola.
Khan Academy
Khan Academy: Equation of a Parabola From Focus & Directrix
Given the focus and the directrix of a parabola, find its equation.
Math Words
Math words.com: Parabola
The definition for what a parabola is and an explanation of the difference between a parabola and u-shaped curve is given. Also provides illustrations of what a vertical and horizontal parabola look like.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Graphing Parabolas
Dr. Math helps a student with the plotting and with finding the vertex and line of symmetry of a parabola.
Illustrative Mathematics
Illustrative Mathematics: G Gpe Defining Parabolas Geometrically
The purpose of this task is to show that the points on a parabola can be characterized by being equidistant from a point (the focus) and a line (the directrix). Aligns with HSG-GPE.A.2.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola Focal Point
Dr. Math discusses some of the "rules" of parabolas that are specific to the focal point.
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: 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.
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....
Texas Instruments
Texas Instruments: Defining the Parabola
The teacher will graph a horizontal line and plot a point using TI-Navigator, and the class will provide the points that create a parabola.
National Council of Teachers of Mathematics
The Math Forum: An Introduction to Parabolas
"Dr. Math" wonderfully discusses the basics of parabolas. He identifies where in our lives we would see parabolas as well as mentioning some of the terminology associated with them. A link is provided for information on conic sections.
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.
Khan Academy
Khan Academy: Exploring the Parabola Construction
This is a 7-problem quiz/practice about parabola construction such as Where does the string touch the parabola?
Texas Instruments
Texas Instruments: Prehistoric Parabola Match
This activity center is used as a formative assessment after a full unit on the different transformations of vertical parabolas.
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.
Texas Instruments
Texas Instruments: Vertex Form of a Parabola
This set of multiple choice questions asks students to identify parabolas in vertex form, to find the vertices of parabolas, and to determine if their graphs open up or down. Solutions are included.
Texas Instruments
Texas Instruments: Standard Form of a Parabola
This activity will help students work with the standard form of a parabola y = a(x - h)^2 + k by writing an equation given the vertex and a point.
Texas Instruments
Texas Instruments: Exploring the Width of a Parabola
Use TI-Navigator to explore the width of a parabola. All directions are provided on the teacher's guide.
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