$($b$)$ Your investment portfolio consists of RM$15,000$ invested in only one stock, Roof Berhad. The risk$-$free interest is $5\%.$ The expected return is $12\%$ and standard deviation of $40\%$ for Roof Berhad. The market portfolio has an expected return of $10\%$ and a standard deviation of $18\%.$ The CAPM conditions are all verified.

$($i$)$ Graph the position of Roof Berhad and market portfolio in Capital Market Line $($CML$).$

$(4$ marks$)$