parabola

• a curve having every point an equal distance from a fixed point (the focus) and a fixed line (the directrix). • the graph of a quadratic equation. • one of the four conic sections.

EXAMPLE: Parabola Interactive Graphs http://www.intmath.com/plane-analytic-geometry/parabola-interactive.php Applications in Real Life http://www.intmath.com/plane-analytic-geometry/4-parabola.php