Parabolas

Parabolas

1. A parabola is an curve where the point is at an equal distance from:

   • A fixed point (the focus)
   • A fixed straight line (the directrix)

2. Vertex

   • the vertex is the halfway between the focus and directrix
   • where the parabola makes its sharpest turn

3. Axis of Symmetry

   • goes through the focus, at right angles to the directrix

4. ·

   • The equation of a parabola is an quadratic equation. (a2+bx+c=0)
   • the vertex in the image is '0', the yellow dots on the axis of symmetry, and the arch is the parabola

5. parabolas real life

6. ·

   • different types of results

7. referencing:

   • http://www.matsisfun.com/geometry/parabola.html

Bilder und Dateien der Mindmap