If we are graphing total utility, then the total utility curve will
A) always be increasing.
B) always be decreasing.
C) be increasing as long as marginal utility is positive.
D) be horizontal if marginal utility is positive.

Question

Quizplus · Accepted Answer

Total utility curve will be increasing as long as the marginal utility is positive. Once the marginal utility becomes zero or negative, the total utility starts to increase at a slower rate or decrease, respectively. Therefore, the curve will reach its maximum point where marginal utility becomes zero or negative.

If We Are Graphing Total Utility, Then the Total Utility