Technically a parabola is the locus of all points equidistant from a point and a line.
Visually it looks a bit like a cup that is infinity tall with no handle.
If you google parabola I am sure you will see hundreds of pictures. :)
https://www.google.com.au/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=parabolas
Technically a parabola is the locus of all points equidistant from a point and a line.
Visually it looks a bit like a cup that is infinity tall with no handle.
If you google parabola I am sure you will see hundreds of pictures. :)
https://www.google.com.au/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=parabolas