$\begin{array}{1 1}e=\large\frac{5}{4}\normalsize;foci(0,\pm 4)\\e=\large\frac{5}{4}\normalsize;foci(\pm 4,0)\\e=\large\frac{4}{5}\normalsize;foci(0,\pm 4)\\e=\large\frac{4}{5}\normalsize;foci(\pm 4,0)\end{array} $
