u Tons of 1 2 1 1 5 B 7 B orsilive a. (10 points) Compute the marginal product of fertilizer for the different fertilizer quantities and plot the marginal product of fertilizer as a function of the quantity of fertilizer. Remember to use the initial point as reference (e.g., the marginal product of moving from 3 to 4 tons should be entered at the initial point of 3 tons). b. (3 points) Does the production function exhibit diminishing marginal returns to fertilizer? If =0, over which range of fertilizer quantity do they occur? c. (2 points) Does total output always increase as more fertilizer is added