Question

The equation of the plane passing through the point $(3,-6,9)$ and perpendicular to the $x$ axis is:

• A. $x+2=0$
• B. $y-3=0$
• C. $x-3=0$
• D. $z-7=0$

Answer 1

The correct option is C $x-3=0$

The equation of the plane passing through the point $(3,-6,9)$ and perpendicular to the $x$ axis is $x=x_1$
$\Rightarrow x=3$
$\Rightarrow x-3=0$