Suppose the return on market is 13.00%, market volatility is 40.00% and the risk-free rate is 4.00%

Suppose the return on market is 13.00%, market volatility is 40.00% and the risk-free rate is 4.00%.
i) Using an illustration diagram of the Capital Asset Pricing Model (CAPM), formulate the equation of the Security Market Line (SML) based on the above information.