Parabola focus & directrix review

parabola  A parabola is a curve in which every point on the curve is equidistant from a point called a focus and a straight line called a directrix It is a U-shaped Axis Finding the axis of a parabola can be tricky It helps a lot when identifying whether the parabola is horizontal or vertical The simplest definition of

The meaning of PARABOLA is a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line The parabola was studied by Menaechmus who was a pupil of Plato and Eudoxus He attempted to duplicate the cube, namely to find side of a cube that has a volume

The graph of a quadratic equation in two variables is called a parabola The following graphs are two typical parabolas their x-intercepts Finding the Vertex of a Parabola We have now introduced how to find the vertex of a parabola The x − coordinate of the vertex is x = − b 2