*Right handed or left handed parabola
A quadratic of the form x = ay2 + by + c represents an right handed or a left handed parabola, it can also be expressed by the following function
(y – v)2 = L (x – u)
Here (u, v) represent coordinates of vertex (V) of a parabola. L= +ve for right handed parabola &
L = – ve for a left handed parabola.