Describe the plane perpendicular to each of the following axes at the given points with a single equation or a pair of equations a. the z-axis at (-4,9, -2) b. the x-axis at (5, 3,2) c. the y-axis at (6,9,-3) a. choose the correct equation of a plane perpendicular to the z-axis. b. choose the correct equation of a plane perpendicular to the x-axis. ○ a. z=2 -axis. c. choose the correct equation of a plane perpendicular to the y