Find the critical points, domain endpoints, and local extreme values (absolute and local) for the function. 1 -3x, x=1 y= 4x - 6, x >1 What is/are the x-value(s) of the critical point(s)? Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The critical point(s) is/are at x = (Round to the nearest thousandth as needed. Use a comma to separate answers as needed.) O B. There are no critical points