The following graph shows a downward-sloping demand curve for a good. Refer to the graph to answer the question.

The price elasticity of demand at point B is equal to _____.
3
1
∞
0
The following graph shows a downward-sloping demand curve for a good. Refer to the graph to answer the question.
The price elasticity of demand at point B is equal to _____.
3
1
∞
0