6+x 9x Find the absolute extrema if they exist, as well as all values of x where they occur, for the function f(x) = on the domain [ 9,0]. Select the correct choice below and, if necessary, ll in the answer boxes to complete your choice. A- The absolute maximum is , which occurs at x = (Round the absolute maximum to two decimal places as needed. Type an exact answer for the value of x where the maximum occurs. Use a comma to separate answers as needed.) O B. There is no absolute maximum