In the Graphics tab, once a stage is added to a graphic, a line appears between the graphic and its final placement. Graphic path types represent the path an image takes between stages of an animation.
Line Path Type
Line is the straight path given by default when a stage is added to an animation.
Bezier Path Type
If the lined is curved with a circle (control point), the graphic path type is bezier. By dragging the control point,you can change the path of the curve.