The set of indifference curves that show that a consumer remains equally well off by substituting one good for another at a constant rate must be _____.
A)negatively sloped
B)parallel lines
C)positively sloped
D)concave

Question

Quizplus · Accepted Answer

Indifference curves that show constant rate of substitution between two goods must be parallel lines. This is because the consumer is willing to give up a fixed amount of one good to attain an extra unit of the other good, regardless of the level of consumption. Therefore, the slope of these curves will be constant (i.e., parallel).

The Set of Indifference Curves That Show That a Consumer