**ECNC 213 Derivation and Plots of Demand, Marginal Revenue, and Revenue Curves**

The equation below represents a linear demand curve. Use the grid (right) for your plots. Write all derivations in the space below.

**l) **Plot the demand function on the top set of axes. Your demand function is:

**Qx = 60000 – 200Px**

**2)** The price function is the inverse of the demand function. Write this inverse below.

**3)** Use the price function to obtain the total revenue function (TR). Write the TR function below. You will plot TR on the lower set of axes in step 5.

**4) **Derive (or simply write) the marginal revenue (MR) function below. Plot MR on the top set of axes (in the proper location with respect to the demand function).

**5)** Use the TR function (3) to calculate revenue for each of the seven Qx values below. Use the seven revenues to plot the revenue function properly.

**Qx Revenue**

0

10k

20k

30k

40k

50k

60k

k means thousand