Question

When the price elasticity of demand for a commodity equals infinity, ______.

[1 mark]

• A. The demand curve is a horizontal straight line parallel to the X-axis.
• B. The demand curve is a vertical straight line parallel to the X-axis.
• C. The demand curve is upward sloping.
• D. The demand curve is downward sloping.

Answer 1

The correct option is A The demand curve is a horizontal straight line parallel to the X-axis.

If the Ed is infinite, then any change in price would result in infinite changes in demand. So, it is represented with a horizontal straight line parallel to the X-axis.