[size=200][b]Draw a point, "P", that moves along the line "r"[/b][/size][br][br][color=#000000]GeoGebra is a dynamic Geometry program and allows you to animate objects, for example a point through a line.[/color][br][br][color=#9900ff]1st. Activate the "Point" tool[icon]/images/ggb/toolbar/mode_point.png[/icon] and click on the line "r".[/color][br][br][color=#9900ff]2nd. Name the point "P".[/color][br][br][color=#9900ff]3rd. Open the context menu of that point and click on "Animation on". The point disappears on one side of the window and after a while it appears on the other side.[/color][br][br][color=ff0000][b]An animation button appears in the lower left corner of the Graphics View. It allows you to either pause or continue an animation.[/b][/color][br][br][color=#000000]The two curved arrows located in the upper right corner of the Graphics View allow you to reset the activity.[/color][br][color=#000000]If the activity is correct, you will get 10 points automatically.[/color]