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Find the Vertex of the Parabola Associated with the Quadratic y=−x2+9x+7y = - x ^ { 2 } + 9 x + 7

Question 47

Multiple Choice

Find the vertex of the parabola associated with the quadratic equation.
- y=−x2+9x+7y = - x ^ { 2 } + 9 x + 7


A) (9,7) ( 9,7 )
B) (−9,−155) ( - 9 , - 155 )
C) (−92,−2154) \left( - \frac { 9 } { 2 } , - \frac { 215 } { 4 } \right)
D) (92,1094) \left( \frac { 9 } { 2 } , \frac { 109 } { 4 } \right)

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