SOLUTION: Find the vertex, line of symestry, and the line of symmestry, and the maximum or minimum value of fx)=-x^2+12x+3

Question 334236: Find the vertex, line of symestry, and the line of symmestry, and the maximum or minimum value of
fx)=-x^2+12x+3
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Convert to vertex form, where (h,k) is the vertex.

The vertex is (,).
The vertex lies on the axis of symmetry,
The parabola opens downwards since the coefficient of the term is negative and the vertex value is a maximum.

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