Graphing Quadratic Functions by Garret Cahill

Graphing Quadratic Functions by Garret Cahill
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2015-10-13 02:05
This example demonstrates how to graph quadratic functions. Key mathematical concepts include quadratic equations, vertex, roots, and discriminant. Using GeoGebra commands like Coefficients, Textfield, If, etc., you can dynamically adjust the coefficients of the quadratic function and observe the changes in the graph. Suitable for middle school and above students to learn about the graphs and properties of quadratic functions.

GeoGebra Commands & Parameters

  1. Coefficients(f) → Coeff
  2. Textfield(f) → InputBox1
  3. If(disc ≥ 0, h - sqrt(disc) / ((2 * Coeff(1))), 1) → x2
  4. If(disc ≥ 0, h + sqrt(disc) / ((2 * Coeff(1))), 1) → x1