Stock K has an expected return of 8.7% and Bet 0.91. If the risk-free rate is 2.2%. Calculate the portfolio expected return and the portfolio Beta for 7 different weights of K in the portfolio (different percentages of a portfolio in asset K): 0%, 25%, 50%, 75%, 100%, 125%, 150%. What is the slope of the line? (Visit the session about the security market line)