A graph shows price (dollar sign) labeled 4 to 16 on the horizontal axis and profit (dollar sign) on the vertical axis. A line of orange dots increases from 0 to 6 starting at 80 on the vertical axis, then decreases from 6 to 16. Which function represents profit, P(x), as a function of x, the price per music class? P(x) = –(x – 6)2 116 P(x) = (x 6)2 116 P(x) = –2(80x) P(x) = –80(2x)