Please show all equations and work as necessary.

8. The expected return-beta relationship of the CAPM is graphically represented by A. the security-market line. B. the capital-market line. C. the capital-allocation line. D. the efficient frontier with a risk-free asset. E. the efficient frontier without a risk-free asset. 9. According to the Capital Asset Pricing Model (CAPM), a security with a A. positive alpha is considered overpriced. B. zero alpha is considered to be a good buy. C. negative alpha is considered to be a good buy D. positive alpha is considered to be underpriced