Axis of a parabola lies along x-axis. If its vertex and focus are at distance 2 and 4 respectively from the origin, on the positive x-axis then which of the following points does not lie on it ?
(1) $(4,\ -4)$
(2) $(5,\ 2\sqrt6)$
(3) $(8,\ 6)$
(4) $(6,\ 4\sqrt2)$
(1) $(4,\ -4)$
(2) $(5,\ 2\sqrt6)$
(3) $(8,\ 6)$
(4) $(6,\ 4\sqrt2)$