Vertex of a Parabola Definition
The vertex of a parabola is the point at which a parabola makes its sharpest turn. The vertex is halfway between the directrix and the focus. Below is a graph of a parabola with all its major features labeled including its axis of symmetry, focus, vertex, and directrix.
Related Definitions
Sources
“Vertex of a Parabola.” Mathwords, www.mathwords.com/v/vertex_parabola.htm.
