# Transformation of Quadratic Functions

- Author:
- Rebecca Decker, Eleven Bottles

- Topic:
- Functions, Quadratic Functions

Before using this applet you should know about the "completed square" or "vertex" form of a quadratic equation.

Use the sliders to change the values of the parameters in the completed squrae form of the equation.
See how the shape of the graph varies.
Fit a quadratic graph to the points (1, 5) (the vertex), (2, 6) and (3, 9)
Fit a quadratic graph to the points (-3, -2) (the vertex), (-2, 0) and (-1, 6)
Try to work out what the equation will be first, and then use the applet to check your solution.