Use a Graphing Calculator to Find the Coordinates of the Turning

question 353

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) \(( - 3.50 , - 106.37 )\)
• B) \(( 0 , - 12 )\)
• C) \(( 1.09,120.09 )\)
• D) \(( - 6.42 , - 621.94 )\)

---

Definitions:

Valid Argument

A logical sequence of statements where if the premises are true, the conclusion must also be true.

Prejudged

To make a decision or form an opinion about something or someone in advance, without sufficient evidence or through bias.

Worthy of Friendship

A term used to describe individuals or entities that possess qualities making them desirable or valuable as friends.

Virtuous

Having or showing high moral standards, including traits such as integrity, courage, and honesty.