Each mathematical object in GeoGebra has its own properties. Some of the properties of a line, for example, are its equation, color, and thickness; while a slider has maximum, minimum, increment, and animation properties.

The properties of mathematical objects in GeoGebra can be modified using the *Object Properties* window. The *Object Properties* window can be shown by right-clicking a particular object and choosing **Object Properties** from pop-up menu as shown in the first figure.

It is important to note that some properties are unique to a particular object, and some are common to many. For instance, most mathematical objects have the *color *property, while *decoration* properties are only available to lines and angles. Continue reading