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). y = X + X y 5 32.5 6 35.56 7 34.72 8 36.88 9 41.34 10 42.3 11 44.56 12 46.22 13 48. 18 14 50.84