Macroeconomics 11th Edition by Michael Parkin

Exercise 42

Use the following table to work Problem. The table gives information about umbrellas: price, the number purchased, and rainfall in inches.
What happens in the graph in Problem if the rainfall increases from 1 inch to 2 inches?
Problem
Use the following table to work Problem. The table gives information about umbrellas: price, the number purchased, and rainfall in inches.
Draw a graph to show the relationship between the price and the number of umbrellas purchased, holding the amount of rainfall constant at 1 inch. Describe this relationship.