Jake considers fries and onion rings perfect substitutes. The indifference curve between fries and onion rings must be:
A) a right angle.
B) concave.
C) perfectly vertical.
D) a straight line.

Question

Quizplus · Accepted Answer

For perfect substitutes, the indifference curve is a straight line because the consumer is willing to substitute one good for the other at a constant rate.

Jake Considers Fries and Onion Rings Perfect Substitutes