### Parabola

The parabola is a plane curved figure, where a set of points, on the curve, is equidistant from a
fixed point called focus, and to a fixed straight line called the directrix.

The parabola is represented, algebraically, by the Standard Form: y = a x^{2}+bx +c.

Parabola elements:

Vertex: midpoint between the focus and the directrix;

Focus: fixed point F;

Focal parameter: distance between the focus and the directrix;

Directrix: fixed straight line;

Axis of simmetry: perpendicular line to the directrix passing through the focus.

To calculate the elements of a parabola, given the standard form, enter: a, b and c, using the point as a decimal separator. Example: 1350.38; the results will
be shown after a click on **Calculate.**

**Note:**The accuracy of the calculator and its applicability to
particular cases is not guaranteed.

### Related Topics

Right Triangle Isosceles Triangle Equilateral Triangle Scalene Triangle Square Rectangle Trapezium Right-Angled Trapezoid Isosceles Trapezoid Rhombus Regular polygon Polygon names Circle Pyramid Triangle pyramid Square pyramid Rectangular pyramid Cube Prism Rectangle Prism Cone Cylinder Sphere Ellipse Parabola Hyperbola