13. The gure below shows a linear demand curve. Fill in the blanks a through I as indicated in the gure. For the linear demand curve below: Write the equation for the demand curve. Write the equation for the inverse demand curve. Write the equation for the total revenue curve. Write the equation for the marginal revenue curve. 999'. Price and marginal revenue (dollars) Marginal Revenue Total Revenue Total revenue (dollars) .03 0) '4 U1 Quantity