Use a Graphing Calculator to Find the Coordinates of the Turning

question 20

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.
- $$f ( x ) = x ^ { 4 } - 13 x ^ { 2 } + 36 ; [ - 1,0.5 ]$$

• A) \(( - 2.55 , - 6.25 )\)
• B) \(( 0,36 )\)
• C) \(( 3,175.50 )\)
• D) \(( 2.55,70.57 )\)

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