From GeoGebra Manual
- Click on the drawing pad in the Graphics View in order to create a new point. The coordinates of the point are fixed when the mouse button is released.
- By clicking on a segment (or interval), straight line, polygon, conic section, function, or curve you can create a point on this object.
- Clicking on the intersection of two objects creates this intersection point (see also Intersect tool and Intersect command).
- See also Point command.