The revenue for a company may be determined through use of a formula such as R(x) = x × p(x), where x represents the number of items sold and p(x) represents the price of each item. Using such formulas, companies can analyze how their revenue may be affected by the quantity of items sold and/or the price at which each item is sold. By adjusting the variables in the formula, for example, it is possible to see how an increase or decrease in sales might affect revenue, or similarly how a change in price might impact revenue.

In this application, you will learn how to form a revenue equation based on the price of an object, p(x), and the number of items sold, x. In other cases, the revenue equation will be provided and you will have to perform substitution and the necessary calculations in order to answer the questions.

Try working through each problem first using paper and pencil. Then use the interactive application to check your work. To use the application, first click on the "play" button and then enter your values for p(x) and x. You may have to hit the "enter" key after you enter new values in order to refresh the application.