Need a b and c

Graphical derivation of beta A firm wishes to estimate graphically the betas for assets, A and B. It has gathered the return data shown in the following table market portfolio and for both assets over the last 10 years, 2006-2015. On a set of "marker return (x-axis) -asset return (y-axis)"axes,use the data given to draw the characteristic line (x-axis)asset A and foe asset B. Us the characteristic line from a to estimate the betas fo assetsA and b. Use the betas found in part b to comment on the relatyive risks of A and B