3) Using the optimal utility from Problem 1), create an indifference curve. Vary _c from 0 to 20% in increments of 1%. For each _c, solve the utility equation for E(r_c).

Then calculate a second indifference curve by adding .03 to the optimal utility and a third indifference curve by subtracting .03 from the optimal utility. At this point youll have 3 indifference curves.

Finally, use the CAL function to calculate E(r_c) for each _c

Show graphically that the CAL function is tangent to the indifference curve for the optimal utility.