GeoGebra
  • Create Lesson
GeoGebra
  • Home
  • News Feed
  • Resources
  • Profile
  • People
  • Classroom
  • App Downloads
About GeoGebra
Contact us: office@geogebra.org
Terms of Service – Privacy – License

© 2022 GeoGebra

Imagining the roots of a quadratic equation

Author:
Tom Button
Topic:
Root
The roots of a quadratic equation can be found symmetrically either side of the vertical line through the vertex. For a quadratic equation with complex roots this can be found by examining a parabola of the form y=–x² with the same vertex as the original curve.

New Resources

  • A coffee cup and a doughnut
  • A1_ Linear and exponential models 278299
  • GCD of Three Numbers (Practice Exercise)
  • LCM of Three Numbers (Practice Exercise)
  • Open Middle: Linear Function to Cone

Discover Resources

  • list
  • Graphing solutions to an Inequality
  • Chronos Mobile
  • SL M16 P2 TZ2
  • DandySpheres hyperbola

Discover Topics

  • Quadrilaterals
  • Hyperbola
  • Statistical Characteristics
  • Ellipse
  • Normal Distribution

GeoGebra

  • About
  • Partners
  • GeoGebra on Tests
  • News Feed
  • App Downloads

Apps

  • Calculator Suite
  • Graphing Calculator
  • 3D Calculator
  • CAS Calculator
  • Scientific Calculator

Resources

  • Classroom Resources
  • Learn GeoGebra
  • Classroom
  • Geometry
  • Notes
  • Terms of Service Privacy License
  • Facebook Twitter YouTube