Problem: Using the following information, calculate total utility and marginal utility.
A. Plot the total utility curve
B. Plot marginal utility directly below total utility
C. At what marginal utility value does total utility reach at maximum?
Number of utils for the first unit 300
Number of utils for the second unit 250
Number of utils for the third unit 220
Number of utils for the fourth unit 160
Number of utils for the fifth unit 100
Number of utils for the sixth unit 50
Number of utils for the seventh unit 20
Number of utils for the eighth unit 0
Number of utils for the ninth unit -225