Descibe in words the region of \(\mathbb{R^{3}}\) represented by the equation or inequality. \(y = -2\)

Solve the given Alternate Coordinate Systems and give a correct answer 10) Convert the equation from Cartesian to polar coordinates solving for \(r^2\): \(\frac{x^2}{9} - \frac{y^2}{16} = 25\)