Profit maximization in the short run c(a Cost Revenue, Profit s(per year) Total cost Slope of c(=Mc Why is cost positive when g is zero? Output (units per year) Chapter 8 Slide 14Chapter 8 Slide 14 0 Cost, Revenue, Profit $ (per year) Output (units per year) Profit Maximization in the Short Run C(q) Total Cost Slope of C(q) = MC Why is cost positive when q is zero?