Drawing lines is fairly simple - it is all the other parts of the application that are difficult. I provide a free to use graphing component - Generic_mcGraph - demo.

public function lineTo(x:Number, y:Number):void
public function moveTo(x:Number, y:Number):void

Time series graph - really cool zoom feature

URL: http:// cpcug.org / user / clemenzi / technical / Languages / ActionScript / Graphs.html