Verify the claims on pages 679–680 of the text about the welfare effect of discrimination in Figure.

Verify the claims on pages 679–680 of the text about the welfare effect of discrimination in Figure 18.8. (The student demand function is Qd S  400  100P; the demand function of other adults and the monopolist’s marginal cost are the same as in worked-out problem 18.2 on page 673.)