Working with keyframe interpolation

1. Continue with Adding rotation etc.
2. Select the 2nd keyframes of Position, Scale, and Rotationl at one time
3. Right-click any of the 2nd keyframes --> Choose Ease In from the Temporal Interpolation
4. Select the 3rd set of keyframes --> Choose Ease Out
5. Expand the Position, Scale, and Rotation parameters to see their graphs. (figure)
6. Play the clip.
    I found  the change was very subtle.