Draw a graph that shows what happens to the Markowitz efficient frontier when you combine a risk-free

Question:

Draw a graph that shows what happens to the Markowitz efficient frontier when you combine a risk-free asset with alternative risky asset portfolios on the Markowitz efficient frontier.
Explain why the line from the RFR that is tangent to the efficient frontier defines the dominant set of possibilities. Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...