ExamBro
ExamBro
MHT CET · Maths · Three Dimensional Geometry

The Cartesian equation of the plane passing through the point A \((7,8,6)\) and parallel to the XY plane is

  1. A \(z=1\)
  2. B \(y=8\)
  3. C \(x=7\)
  4. D \(z=6\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(z=6\)

Step-by-step Solution

Detailed explanation

The required plane passes through the point \((7,8,6)\) and is parallel to XY plane.
\(\therefore\) It is perpendicular to \(\mathrm{z}\) axis and direction ratios of \(\mathrm{z}\) axis are \(0,0,1\).
\(\therefore\) Required equation of plane is
\(
0(\mathrm{x}-7)+0(\mathrm{y}-8)+1(\mathrm{z}-6)=0 \Rightarrow \mathrm{z}=6
\)