3. The marginal cost curve intersects the ATC curve at its -. (LO5) a) minimum point, which is the break-even point b) maximum point, which is the break-even point c) minimum point, which is the shut-down point d) maximum point, which is the shut-down point 4. A profit-maximizing firm will increase production when (LO3) a) price is less than marginal cost b) price equals marginal cost c) price exceeds marginal revenue d) price exceeds marginal cost