## College Algebra (6th Edition)

The foci are located at $(0, -\sqrt{33})$ and $(0, \sqrt{33})$
Major axis parallel to the $y$-axis, vertical. $a^{2}=49,$ $a=7$ $b^{2}=16,$ $b=4$ Vertices: $(h, k-a),\quad (h, k+a)$ $(0, -7),\quad (0, 7)$ Foci are $c$ units above and $c$ units below the center, $c^{2}=a^{2}-b^{2}=49-16=33$ $c=\sqrt{33}$ The foci are located at $(0, -\sqrt{33})$ and $(0, \sqrt{33})$