demand function

noun
UK /dɪˈmɑːnd ˈfʌŋkʃən/
US /dɪˈmænd ˈfʌŋkʃən/

A demand function is a math rule that shows how much of something people will buy at different prices.

The store used a demand function to guess how many toys it would sell if it lowered the price.


OTHER MEANINGS

2. In economics, a formula linking the quantity demanded of a good to its price and other factors like income.

Economists estimated the demand function to predict sales after a price change.

3. A mathematical expression showing how demand depends on variables such as price, income, and tastes.

The demand function included income as a variable alongside price.

4. The relationship between price and the amount consumers are willing and able to buy.

Plotting the demand function gave a downward-sloping line on the graph.