Use a Graphing Calculator to Find the Coordinates of the Turning

Multiple Choice

Use a graphing calculator to find the coordinates of the turning points of the graph of the polynomial function in the
indicated domain interval. Give answers to the nearest hundredth.
- $$f ( x ) = - 2 x ^ { 3 } - 10 x ^ { 2 } + 82 x + 90 ; [ 2,3 ]$$

A) $( 2.39,201.56 )$
B) $( - 5.72 , - 893.92 )$
C) $( 0,45 )$
D) $( - 5.50 , - 829.87 )$