Question $25(1$ point$)$

Write the scalar equation $of$ the plane perpendicular $to$ the $xy-$plane and passing through the point $(4,2,1).$

$Az-1=0$

$Cx+y-6=0$

$Bz+1=0$

$Dx+y+z-7=0$

$A$

$B$

$C$

$D$