1. what are the three purposes for drawing and what process does degas use to make a work easier to copy in other finished work? list the purposes and state the process used by degas.

These are three Purposes:
Purposes of drawing Perception (drawing that assist the ordering of feelings, sensations, ideas and thoughts)
Purposes of drawing communication (drawing that assist the process of making ideas, thoughts and feelings available to others)
Purposes of drawing invention (drawing that assist the creative manipulation and development of thought)
The process used by degas to make a work easier to copy in other finished work is called "Squared for Transfer".