# Minimum / maximum function Grade II

## Peak parable

The function has an edge (minimum or maximum) equal . This peak is found for .

If **a > 0**, this peak is a **maximum**, and if** a < 0** this peak is **minimal**.

The graph** function of the second degree** is a **parable **that has coordinates:

So, the function of the second degree is a minimum or a maximum:

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**Keywords: **
minimum and maximum parable, algebra, graphic, parable

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