A seasoned investment consultant has the capacity to oversee up to 30 distinct client portfolios per month. The revenue generated from managing these portfolios can be expressed by the equation R(x) = -0.2x^2 + 5x - 4, where R(x) is the monthly revenue in hundred-thousands of dollars and x is the quantity of portfolios supervised. a. Apply the vertex formula, y-intercept and x intercept principles to sketch this revenue function. b. To optimize revenue generation, determine the ideal number of portfolios the investment consultant should supervise each month. c. Calculate the maximum feasible revenue the investment consultant can generate on a monthly basis