From the following total utility schedule

Q_x

0

1

2

3

4

5

6

7

TU_x

0

6

16

22

26

29

29

27

a. Derive the marginal utility schedule.

b. Plot the total and the marginal utility schedules.

c. Determine where the law of diminishing marginal utility begins to operate.

d. Find the saturation point.