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Use the slider to change the value of a. Investigate the effect this has on the graph of y=f(ax) \,. Can you describe this effect?


The transformation described by y=f(ax) is a stretch in the horizontal direction, stretch factor 1/a.

Software/Applets used on this page

This page uses JSXGraph

JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser. It is implemented completely in JavaScript, does not rely on any other library. It uses SVG and VML and is fully HTML5 compliant.



A rule that connects one value in one set with one and only one value in another set.


A diagram showing a relationship between two variables.
The diagram shows a vertical y axis and a horizontal x axis.


To mark a point on a graph accurately by using its coordinates.


A change in form or shape.

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