Suppose a firm’s profit function is twice-differentiable with respect to the quantity…

MATHEMATICS · Single correct · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation

Problem

Suppose a firm’s profit function P(q)P(q) is twice-differentiable with respect to the quantity qq produced and sold. If the marginal revenue equals the marginal cost at q=q0q=q_0 and P′′(q0)<0P''(q_0)<0, which of the following is the most accurate conclusion about the profit at q0q_0? (a) q0q_0 yields a point of inflection of PP. (b) q0q_0 yields a relative maximum of PP. (c) Profit is increasing for all q>q0q>q_0. (d) q0q_0 yields a relative minimum of PP.

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