Calc5

5. Given the function below, find the following. For credit you must show complete and correct to support your answers. (10 points; 7, 3) f(x, y) = 8x3 - 24xy + y3 a. Find the critical points. (You will use the Second Derivative Test to classify them on the next page.) Continued from the previous page... 5b. Use the Second Derivative Test to classify each of the critical points as a local maximum, a local minimum, or a saddle point. If you cannot determine then say so and explain why