Pitch and Voice Stress

Can I see an analysis of the pitch in line graph format on an Adudacity track?

Does anyone know how to use Audacity for voice stress analysis?

One of the classic tools for voice analysis is the spectrogram.
You can select that view of a track from the drop down menu when you click on the track name.

You will probably want to increase the frequency response of the spectrogram view - the setting for this is in the Audacity Preferences (from the Edit menu). I’ve no idea how you interpret it though - you will need to find a book about it I guess.