Function dilations, introduced using both a visual and an algebraic approach.
Using Corresponding Points to Determine Dilation Factors and Translation Amounts
A worked example of how to determine transformation functions and the transformed equation, given the equation of the first graph and two sets of corresponding points from the graphs.
Interactive Graphs for Linear, Quadratic, Rational, and Trig Functions Moved to GeoGebraTube
A set of links to Algebra and Trigonometry GeoGebra applets hosted on GeoGebraTube.
Function Dilations: How to recognize and analyze them
How to recognize vertical and horizontal dilations in both graphs and equations.