Vertex of a Parabola

The vertex of a parabola is a point on the parabola itself. It is the point where the axis of the parabola intersects the parabola.

Vertex of a Parabola

For an upright parabola, vertex is the lowermost point on it:

For an upside down parabola, vertex is the uppermost point on it:

For a right facing parabola, vertex is the leftmost point on it:

And for a left facing parabola, the vertex is the rightmost point on it:

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