Answer Happy

Find the critical points, domain endpoints, and local extreme values for the function. 4/5 y = x (x + 1) What is/are the critical point(s) or domain endpoint(s) where f' is undefined? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The critical point(s) or domain endpoint(s) where f' is undefined is/are at x = (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) OB. There are no critical points or domain endpoints where f' is undefined.