Find a polynomial function whose graph passes through each set of points (-1,8), (5,-4), and (7,8) air travel the table shows the percent of on-time flights for selected years. find a polynomial function to model the data. use 1998 as year 0. year 1998 2000 2002 2004 2006 on-time flights (%) 77.20 72.59 82.14 78.08 75.45