If you do not know who the artist is in a piece of music for which you are filling out an Engaged Listening Worksheet, mark it . leave it blank unknown N/A

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

Answer the awkward tilt of the room and the linear brushstrokes on the floor (encourage the viewer into the space) this is all i could find, so plz check if it is right or wrong/// good luck