The marginal revenue function is MR = R’(x) = 15 – 6x + 3 x2 and the marginal cost function MC = C’(x) = 9 = 4x where x is the output. If the fixed cost is 20, find the profit function and the profit when the output is x + 5.​

2. (09.01 lc) a function is shown in the table. x g(x) −3 17 −1 −3 0 −4 2 13 which of the following is a true statement for this function? (5 points) the function is increasing from x = −3 to x = −1. the function is increasing from x = −1 to x = 0. the function is decreasing from x = 0 to x = 2. the function is decreasing from x = −3 to x = −1.