The slope of an isocost line and equals the negative of . Select one: a. is constant; the ratio of the marginal products b. decreases as we move down the line; the ratio of the marginal products c. is constant; the ratio of input prices d. increases as we move down the line; the ratio of input prices

c. is constant; the ratio of input prices

Explanation: The isocost line is defined as curve that represents a combination of various inputs (factors of production: labor and capital) that cost the same. The slope of the isocost line is equal to the ratio of price of factor-inputs and as such is constant and equals the negative of the ratio of input prices. It is therefore, an essential tool for determining the combination of factor-inputs a firm will choose for its production process. If two isocost lines are parallel, then both have the same input price ratio but the one further from the origin represents a higher level of total cost.

explanation: doctrine of respondeat superior is a legal doctrine that is commonly used in tort. this principle makes an employer or principal legally responsible for the wrongful acts done by an employee or agent, if such acts occur within the scope of the employment or agency.