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:
Digestive Tracts
The series of hollow organs joined in a long, twisting tube from the mouth to the anus, where food is broken down and nutrients are absorbed.
Pulp Cavity
The central part of a tooth containing the nerve and blood vessels, vital for the tooth's nutrition and sensitivity.
Tooth Decay
A condition where the structure of the tooth is damaged due to bacterial activity, leading to cavities or caries.
Dentin
The hard, dense, bony tissue that forms the bulk of a tooth beneath the enamel, providing its primary structure.
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