GeoGebra

Quadratic Equations

• Quadratic Translations Investigate vertical and horizontal quadratic translations. by Monte Munsinger
• Analyzing graphs of quadratic equations given in intercept or vertex form, Lesson Plan Download All by Megan Yanes
• Analyzing graphs of parabolic functions in factored form by Kathleen Wilson

• Completing the Square and Graphing Parabolas in Vertex Form,Lesson Plan Download All by Megan Yanes

• The Discriminant of a Quadratic Function Investigate the relationship between the discriminant and the number of solutions of a quadratic equation. by Rachel Saltzstein

• Cam Bridge - investigate the parabolic shape of the Cam Bridge, by Adrian Oldknow

• Water fountain and the parabola -fit a quadratic function to a water stream, by Lingguo Bu

• Graphing Quadratic Functions, Interactive - Graph quadratic functions by finding the axis of symmetry, and a table of values. by: Robert Fant

• Graphing PolynomialsDownload- Use sliders to see the graphs of polynomails (up to 6th degree) Created by Cullen G.E. Stevens

• Transform FunctionsDownload- Use sliders transform a quadratic, an absolute value, and a square root fucntion simultaneously. Hide and show each function independently. Created by Cullen G.E. Stevens

• Investigating Quadratic Functions in Vertex Form. The student investigates the affects of changing values for a, h, and k. JavaScript Interactivity. Created by Robert Fant

• Graphing vertex form equations using the step-pattern, by Stefan Camilleri
  Vertex Form
  Vertex Form

• Investigating Quadratic Functions given the Vertex and some other point that the parabola goes through. The student calculates "a" and submits the function in vertex form, comparing their graph to the computer generated graph. JavaScript Interactivity. Created by Robert Fant

• Model multiple parabolas to a photo of the National World War II Monument in Washington DC GGB Download by Jerel L. Welker

• Move the parabola y=ax^2, by Dimitris Poimenidis

• The quadratic function: f(x)=ax^2+bx+c, by Dimitris Poimenidis

• Vertex, Standard, and Intercept Form by Daniel Kaufmann

• The following are three geogebra pages, set up to show vertex and intercepts of parabolas. Nelson of CHHS
  Standard Form
  Vertex Form
  Factored Form

• Interactive application to study graphs of three forms of the equation of a parabola. By Ken Frank
  Equations of a parabola GGB file download
  Word document with supporting details and formulas

• Students explore the locus of the vertex of a parabola when the linear parameter is varied
  Vertex of a parabola
  Created by Milan Sherman

• Students investigate the path of a catapulted pumpkin and model this path with a quadratic equation.
  Smashing Pumpkins GeoGebra file
  Smashing Pumpkins PDF
  Created by Amanda Wuchevich, University of Pittsburgh

• Discriminant of a quadratic Exploring the discriminant of a quadratic using sliders. by Lee Turnock

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