Suppose that the demand curve for a good is represented by the straight line
P = 10 - Q
a. Draw a graph containing both the demand curve and marginal revenue curve.
b. Is the marginal revenue curve a straight line as well? What is the slope of the marginal revenue curve? How does that slope compare with that of the demand curve?
c. Does the marginal revenue curve contain negative values over the specified range of quantities? Explain why or why not.