Which of the following curves depicts the locus of points representing all the efficient combinations of two inputs that yield a constant level of output?

💡 Solution & Explanation

An isoquant curve graphically represents all the technically efficient combinations of two inputs, such as labor and capital, that yield an identical level of output in production theory. In contrast, an indifference curve depicts consumer utility rather than producer output, while a production possibility curve shows maximum attainable output combinations for an entire economy. Isoquants slope downward and are convex to the origin due to the diminishing marginal rate of technical substitution.