Which function could be shown in the graph below? O A f(x) = 4x- 12x - x +15
O B. f(x) = x - 3r’ + 20
O c. (x) = - 3x' + x2-5
O D. Ax) = x² - 5x²+4

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.