6) The research department in a company establishes the following price-demand and cost functions: P(x) = 46- X (price-demand function) C(x) = 68 + 10x (Cost function) The domain for both functions is SXS 40, is in thousands of units, CG) is in thousands of dollars. You may solve parts (b) and (d) below either algebraically or graphically. If you solve graphically then show your work by including a sketch of your calculator's graph. a. (2 points) What is the Revenue function, R(x)? b. (5 points) Find the break-even points. c. (2 points) What is the Profit function P(x)? Simplify. d. (5 points) What is the maximum profit? How many units should be produced and sold in order to maximize the profit? Maximum Profit- Number of units that maximize profit