HW $4$ Planes and Lines: Problem $4$

$(1$ point$)$

$($A$)$ If the positive $z-$axis points upward, an equation for a horizontal plane through the point $(-3,-2,2)$ is

$($B$)$ An equation for the plane perpendicular to the $x$ axis and passing through the point $(-3,-2,2)$ is

$($C$)$ An equation for the plane parallel to the $xz-$plane and passing through the point $(-3,-2,2)$ is