Plane through origin perpendicular to another plane?

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Homework Help Overview

The problem involves finding a plane that passes through the origin and is perpendicular to another given plane defined by the equation M: 2x + 3y + z = 12. Participants are exploring the conditions for perpendicularity between planes and the implications of normal vectors.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the concept of normal vectors and their role in determining the perpendicularity of planes. There is mention of the normal vector of plane M being <2,3,1> and the need for the normal of the new plane to be perpendicular to this vector. Questions arise about how to identify a suitable normal vector for the new plane.

Discussion Status

The discussion is ongoing, with participants sharing insights about the relationship between the normals of the planes. Some guidance has been provided regarding the selection of a normal vector for the new plane, but there is still uncertainty about the process of finding a perpendicular plane.

Contextual Notes

Participants express a lack of clarity on how to proceed with the problem, indicating that they are grappling with the concepts involved and the requirements for the planes in question.

Azndoode1
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Homework Statement


Find a plane through the origin that meets the plane M : 2x + 3y + z = 12 in a right angle. How do you know your plane is perpendicular to M?


Homework Equations


Honestly have no idea... I know how to find an equation for a plane given a normal and a point, however.


The Attempt at a Solution



All I really know is that the normal of M, which is the perpendicular vector, would be <2,3,1>?
 
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Azndoode1 said:

Homework Statement


Find a plane through the origin that meets the plane M : 2x + 3y + z = 12 in a right angle. How do you know your plane is perpendicular to M?


Homework Equations


Honestly have no idea... I know how to find an equation for a plane given a normal and a point, however.


The Attempt at a Solution



All I really know is that the normal of M, which is the perpendicular vector, would be <2,3,1>?

Call your plane N. Then you want the normal of N to be perpendicular to the normal of M. There's a lot of choices that work. Pick one. Now it also has to pass through the origin. Now since you how to find an equation for a plane given a normal and a point, you should be done.
 
Dick said:
Call your plane N. Then you want the normal of N to be perpendicular to the normal of M. There's a lot of choices that work. Pick one. Now it also has to pass through the origin. Now since you how to find an equation for a plane given a normal and a point, you should be done.

How do you find a perpendicular plane though?
 
Azndoode1 said:
How do you find a perpendicular plane though?

Two planes are perpendicular if their normals are perpendicular. Find a vector that is perpendicular to <2,3,1>. Any one. There are lots of them. Use that as your normal for the new plane.
 

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