# Vertex Calculator

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A function of the form $y = ax^{2}+bx+c$ is called quadratic function, where a, b and c are constants. The  graphical representation of quadratic function is called a parabola. Every parabola is symmetric about a vertical line called its axis of symmetry. The vertex of a parabola is a point on which the axis of symmetry passes through.

The figure shows  the parabola corresponding to a function.