91Ó°ÊÓ

Find the coordinates of the foci and the vertices, the eccentricity and the length of the latus rectum of the hyperbolas. $$ \frac{y^{2}}{9}-\frac{x^{2}}{27}=1 $$

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse. $$ \frac{x^{2}}{16}+\frac{y^{2}}{9}=1 $$

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum. $$ x^{2}=-16 y $$