Mel created a scatter plot and drew a line of best fit, as shown. a scatter plot has data points (2, 9), (3, 6), (5, 11), (6, 10), (7, 9), (9, 14), (10, 11), (12, 12), (12, 16), (15, 16) and (17, 19). a diagonal curve fits two points. the maximum range of points lies above and below the curve. what is the equation of the line of best fit that mel drew?