Find the Vertex of the Graph of the Quadratic Function $f ( x ) = - 6 x ^ { 2 } + 12 x + 9$

question 205

Multiple Choice

Find the vertex of the graph of the quadratic function.
- $f ( x ) = - 6 x ^ { 2 } + 12 x + 9$

• A) \(( 1,15 )\)
• B) \(( - 2 , - 39 )\)
• C) \(( 2 , - 3 )\)
• D) \(( - 1 , - 9 )\)

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