Suppose that a restaurant uses a focus group of regular customers to determine how many customers would buy a proposed new menu item at various prices. Can this information be used to estimate an inverse demand curve? A demand curve? Explain briefly. Asking how many customers would buy a proposed new menu item at various prices can be used to estimate A. the inverse demand curve, and the demand curve can be calculated from it. B. only the inverse demand curve. C. neither the demand curve nor the inverse demand curve. D. only the demand curve. E. the demand curve, and the inverse demand curve can be calculated from it.

A demand function helps to show the relation between quantity demanded and price, the price here is the quantity is a function of price. So, writing the function in other way round, the price which is a function of quantity demanded is called as an inverse demand function.

As per the details given in the question above, it is clear that the quantity is a function of price. The prices on the menu varies and the quantity demanded is determined through various prices. Using this a demand function can easily be computed since quantity is a function of price.