The extreme value of the quadratic function is the x-coordinate of the vertex (Correct choice: B) if the axis of symmetry is horizontal, otherwise it is the y-coordinate of the vertex (Correct choice: A).
How to located graphically the extreme value of a quadratic function
Graphically speaking, quadratic functions are represented by parabolas, which are partially bounded functions. The extreme value of the quadratic function is represented by a component of the vertex.
There are two possible answers. The extreme value of the quadratic function is the x-coordinate of the vertex (Correct choice: B) if the axis of symmetry is horizontal, otherwise it is the y-coordinate of the vertex (Correct choice: A).
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