Find the Coordinates of the Vertex of the Quadratic Function $$f ( x ) = - 4 x ^ { 2 } - 8 x - 9$$

question 157

Multiple Choice

Find the coordinates of the vertex of the quadratic function.
- $$f ( x ) = - 4 x ^ { 2 } - 8 x - 9$$

• A) \(( 1 , - 21 )\)
• B) \(( 2 , - 41 )\)
• C) \(( - 2 , - 17 )\)
• D) \(( - 1 , - 5 )\)

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