A sum of $10 000 invested at 4 percent interest compounded annually will grow according to the formula 22. y(k) 10(1.04) where k is the number of years (k 0, 1,2,.. .). Plot the amount of money in the account for a 10-year period. Do this problem with four types of plots: the xy plot, the stem plot, the stairs plot, and the bar plot