Final answer:
An individual's demand curve for a good can determine the quantity demanded at a given price, total expenditures on the good at a given price, and how quantity demanded changes with price.
Step-by-step explanation:
From an individual's demand curve for a good, the following may be determined:
The quantity demanded at a given price, holding all other factors constant: The demand curve shows the different quantities that individuals are willing and able to buy at various prices.
The total expenditures on the good at a given price, holding all other factors constant: The demand curve can be used to determine the total amount spent on the good at a specific price point by multiplying the quantity demanded by the price.
How quantity demanded changes if the price of the good changes, holding all other factors constant: The slope of the demand curve represents the responsiveness of quantity demanded to change in price. A steeper slope indicates a more elastic demand, while a flatter slope indicates a more inelastic demand.