Total Product, Marginal product and the Fixed Input (a) Total Product Curves (b)Marginal Product Curves Quantity Marginal of whea product of labor (bushels (bushels per worker 160 140 TP 120 050 100 TP 15 8000 10 2345678 Quantity of labor(workers) Quantity of labor(workers)Total Product, Marginal Product, and the Fixed Input