To view function curves in the FCurves window:

1. Select an animated object.
2. In the FCurves window’s Property list, select a property or multiple properties.

   Function curves display in the FCurves pane. If they display as flat, uninterrupted lines, the properties you selected are not animated.

   If they do not display at all, the function curves may not be centered in the FCurves pane.

3. Click in the FCurves pane and press A to center all function curves of selected properties.