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.
- $$f ( x ) = - 2 x ^ { 3 } - 16 x ^ { 2 } + 30 x + 108 ; [ 0,1 ]$$

A) $( - 6.50 , - 1037.62 )$
B) $( 0,27 )$
C) $( 0.81,120.74 )$
D) $( - 6.15 , - 913.17 )$