Use the Quadratic Function to Determine If the Function Has $$f ( x ) = 3 x ^ { 2 } + 3 x - 9$$

question 210

Multiple Choice

Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.
- $$f ( x ) = 3 x ^ { 2 } + 3 x - 9$$

• A) minimum at \(\left( - \frac { 1 } { 2 } , - \frac { 39 } { 4 } \right)\)
• B) minimum at \(\left( - \frac { 39 } { 4 } , - \frac { 1 } { 2 } \right)\)
• C) maximum at \(\left( - \frac { 1 } { 2 } , - \frac { 39 } { 4 } \right)\)
• D) maximum at \(\left( - \frac { 39 } { 4 } , - \frac { 1 } { 2 } \right)\)

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