Annual high temperatures in a certain location have been tracked for several years. Let x represent the year and y the high temperature. Based on the data shown below, calculate the regression line (each value to two decimal places).315.04 417.52 520.9 623.18 725.56 829.04 932.72 1036.7 1140.18 1242.96 1342.84 1445.92 1550.8