A hedge fund manager wishes to calculate the SML formula for his portfolio of stocks. In May the beta of the portfolio was determined to be 1.25 and gave a return of 14.5%. In August the portfolio had a beta of 1.35 and a return of 15.7%. Calculate the formula for the SML line for this portfolio. Then determine what the expected return would be for a beta value of 1.45. Finally, determine the beta value of the portfolio if the return is 10.5%.