객관식
Graphical analysis of tariffs reveals that:
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0. Basic Principles of Economics
Graphing Review
객관식
Which of the following statements can be inferred from at least one of the graphs shown in a typical microeconomics graphing review?
A
A supply curve that shifts leftward represents an increase in supply.
B
A perfectly inelastic supply curve is horizontal.
C
An upward-sloping demand curve shows the law of demand.
D
A downward-sloping demand curve indicates that as price decreases, quantity demanded increases.
검증된 단계별 안내1
Recall the basic shapes and directions of supply and demand curves in microeconomics: the supply curve typically slopes upward, and the demand curve typically slopes downward.
Understand what a leftward shift in the supply curve means: a leftward shift indicates a decrease in supply, not an increase, because at every price, less quantity is supplied.
Review the characteristics of perfectly inelastic supply: a perfectly inelastic supply curve is vertical, meaning quantity supplied does not change regardless of price, not horizontal.
Recall the law of demand: it states that as price decreases, quantity demanded increases, which is represented by a downward-sloping demand curve, not an upward-sloping one.
Conclude that the correct inference from typical microeconomics graphs is that a downward-sloping demand curve indicates the inverse relationship between price and quantity demanded, consistent with the law of demand.
