Consider the following production functions along with their corresponding marginal product of labor function.
I. Q = 15KL, where MPL = 15K
II. Q = 2K0.4L0.6, where MPL = 
III. Q = 8K + L, where MPL = 1
a. In each case, what happens to the marginal product of labor as the firm uses more labor?
b. In each case, what happens to the marginal product of labor as the firm uses more capital?
Definitions:
Spreadsheet
A software tool that allows users to organize, analyze, and store data in a table with rows and columns.
Job-Order Costing
An accounting method that assigns costs to specific jobs or batches, ideal for customized or made-to-order products.
Manufacturing Overhead
Indirect factory-related costs that are incurred when producing a product, including costs such as utility expenses for the plant.
Cost of Goods Sold
The expenses directly linked to manufacturing the products a company sells, encompassing both the price of materials and the labor expenses directly involved in product creation.
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