Find an equation if the line having the specified slope and containing the indicated point. write your answer in slope intercept form m=3; (0, -3)

The second investor earned a higher return.

Explanation:

The first investor earns 1.5% for ten years. There is no discount of inflation because the interest rate is already protected.

In the other hand, and according to fisher, is necessary to discount the inflation to the nominal rate and that's going to be the real interest received by the second investor.

Real interest rate = Nominal - inflation

Real interest rate = 4.2% - 2% = 2.2% anual

Comparing both rates we find that