Answer: it already is.
Step-by-step explanation: The more pieces are cut, the smaller they get so the bigger the denominator, the bigger the piece
The graph would be similar to a Sin or Cos graph with a vertical shift. As the music gets louder the graph will go up and as the music and crowd become quieter, the graph will go down. Going up and down until the end of the concert where it will be 0.
Also side note, are you by chance in Trig 01 Summer course? If so, I am in the same class haha.
The answer should be -3, I can explain it if you want.