Question

If regardless of changes in its price, the quantity demanded of a good remains unchanged, then the demand curve for the good will be.

• A. Horizontal
• B. Vertical
• C. Positively sloped
• D. Negatively sloped

Answer 1

Answer: (B)

Vertical

Since the quantity demanded remains unchanged regardless of change in its prices, therefore the commodity has perfectly inelastic demand(E$=0$) and in this case demand curve will be vertical.
or
If regardless of changes in its price, the quantity demanded of a commodity remains unchanged, then the demand curve for the commodity will be Vertical.