The graph of a quadratic function [tex]y= ax^{2} + bx + c[/tex] is called a parabola. Parabola either opens upward or downward. It has a turning point called vertex which is either the highest point or the lowest point of the graph....
a symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. The path of a projectile under the influence of gravity ideally follows a curve of this shape.
