Use a Graphing Calculator to Find the Coordinates of the Turning

question 254

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.
- $$f ( x ) = x ^ { 3 } + 8 x ^ { 2 } - 21 x - 108 ; [ 1,2 ]$$

• A) \(( 0,12 )\)
• B) \(( 3.50 , - 40.62 )\)
• C) \(( - 6.42,91.94 )\)
• D) \(( 1.09 , - 120.09 )\)

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