11. Break-Even Analysis. AutoTime, a manufacturer of 24-hr variable timers, has a monthly fixed cost of $48,000 and a production cost of $8 for each timer manufactured. The unit sells for $14 each. a. Sketch the graphs of the cost function and the revenue function, and thereby find the break-even point graphically. b. Find the break-even point algebraically. c. Sketch the graph of the profit function. d. At what point does the graph of the profit function cross the x-axis? Interpret your result.