graph shown. If the firm increases output from 40 to 50, total revenue will increase: A line graph plots price and cost versus quantity for demand and the marginal cost curve.A line graph plots price, cost, which ranges from 0.0 to 7.0 dollars with an increment of 1.0 dollars, against quantity, which ranges from 0 to 70, with an increment of 10 for an ascending curve with 3 points A to C. The curve begins at 3 dollars, then softly declines to 2 dollars, then climbs to 3 dollars, again ascends to 5 dollars, then peaks at 6.50 dollars, and labeled marginal cost. A 5-dollar on the y-axis represents the demand line. The values are approximate. Multiple Choice more than total cost, and so profit will increase. more than total cost, and so profit will decrease. less than total cost, and so profit will increase. less than total cost, and so profit will decrease