The scatterplot below was created from a table of values and represents the relationship between the number of seconds spent doing sit-ups and the number of sit-ups completed for some of the members of a physical education class. A graph titled Time versus Sit-ups has Time (seconds) on the x-axis and sit-ups on the y-axis. 8 points are plotted. Plots pointed are (10, 16), (20, 20), (20, 30), (20, 40), (25, 30), (30, 35), (35, 45), (45, 48).