$x=3y^2-3z^2$

$($Write an equation for the cross section at $z=-1$ using $x$ and $y.)$

$($Write an equation for the cross section at $z=0$ using $x$ and $y.)$

$($Write an equation for the cross section at $z=1$ using $x$ and $y.)$

$($Write an equation for the cross section at $y=-1$ using $x$ and $2.)$

$($Write an equation for the cross section at $y=0$ using $x$ and $z.)$

$($Write an equation for the cross section at $y=1$ using $x$ and $z.)$

$($Write an equation for the cross section at $x=-1$ using $y$ and z$.)$

$($Write an equation for the cross section at $x=0$ using $y$ and $z.)$

$($Write an equation for the cross section at $x=1$ using $y$ and z$.)$