Answer Happy

(a) Does f(x) have a limit as x approaches 0? O Yes O No the (b) Is f(x) continuous at x = 0? O Yes O No (c) Is f(x) differentiable at x = 0? O Yes O No -/0.09 Points] DETAILS Revenue of a Travel Agency Suppose that the total revenue realized by the Odyssey Travel Agency is R = f(x) thousand dollars if x thousand dollars are spent on advertising. (a) What does f(b) f(a) b-a O This measures the instantaneous rate of change in the revenue when x thousand dollars are spent on advertising. The units are thousands of dollars per thousands of dollars. O This measures the total revenue when a thousand dollars are spent on advertising. The units are thousands of dollars. O This measures the total revenue when b thousand dollars are spent on advertising. The units are thousands of dollars. O This measures the average rate of change in revenue as the expenditure changes from a thousand dollars to b thousand dollars. The units are thousands of dollars per thousands of dollars. O This measures the average rate of change in revenue as the expenditure changes from thousand dollars to a thousand dollars. The units are thousands of dollars per thousands of dollars. (0 < a < b) measure? What are the units? (b) What does f'(x) measure? Give units. O This measures the instantaneous rate of change in the revenue when x thousand dollars are spent on advertising. The units are thousands of dollars per thousands of dollars. O This measures the total revenue when a thousand dollars are spent on advertising. The units are thousands of dollars. O This measures the total revenue when b thousand dollars are spent on advertising. The units are thousands of dollars. O This measures the average rate of change in revenue as the expenditure changes from a thousand dollars to b thousand dollars. The units are thousands of dollars per thousands of dollars. O This measures the average rate of change in revenue as the expenditure changes from b thousand dollars to a thousand dollars. The units are thousands of dollars per thousands of dollars. (c) Given that f'(25) = 5, what is the approximate change in the revenue if Odyssey increases its advertising budget from $25,000 to $26,000? $