Question:
Find the equation of the hyperbola satisfying the give conditions: Vertices $(0, \pm 3)$, foci $(0, \pm 5)$
Solution:
Vertices $(0, \pm 3)$, foci $(0, \pm 5)$
Here, the vertices are on the $y$-axis.
Therefore, the equation of the hyperbola is of the form $\frac{y^{2}}{a^{2}}-\frac{x^{2}}{b^{2}}=1$.
Since the vertices are $(0, \pm 3), a=3$.
Since the foci are $(0, \pm 5), c=5$.
We know that $a^{2}+b^{2}=c^{2}$.
$\therefore 3^{2}+b^{2}=5^{2}$
$\Rightarrow b^{2}=25-9=16$
Thus, the equation of the hyperbola is $\frac{y^{2}}{9}-\frac{x^{2}}{16}=1$.