Question

The equation of plane passing through $(-1,0,-1)$ parallel to $xz$ plane is

• A. $y=-2$
• B. $y=0$
• C. $-x-z=0$
• D. None of the above

Answer 1

Answer: (B)

$y=0$

Given that the plane is parallel to $xz$ plane and the plane passes through $(-1,0,-1)$

Since the plane is parallel to $xz$ plane , the $y$ coordinate should be constant

Given that it passes through point $(-1,0,-1)$ , therefore the plane lies on $xz$ plane

Therefore the equation of plane is $y=0$

The correct options are $B$