$\frac{x^2}{9} - \frac{y^2}{16} = 1$

$\frac{x^2}{36} - \frac{y^2}{64} = 1$

$\frac{y^2}{9} - \frac{x^2}{16} = 1$

$\frac{x^2}{16} - \frac{y^2}{9} = 1$