( - 1, 25, 6, 641) + 8 16 ( 2, 4 ) 2 ! ( 2. 75 , 1. 89D -2 - 1 - 4 absolute maximum of abosolute minimum of at X = _ There is a relative minimum of at * = _ There is a relative maximum of at x - - f(x ) has a critical points at x - at X- B