Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    19
    ReputationRep:


    The last part usually the plane is given in Cartesian form and you can just sub the equation of the line into the equation of the plane and find lambda.

    In the mark scheme it says the plane x -z is the plane y=0 but I don't get how it is this?
    Offline

    19
    ReputationRep:
    (Original post by khanpatel321)


    The last part usually the plane is given in Cartesian form and you can just sub the equation of the line into the equation of the plane and find lambda.

    In the mark scheme it says the plane x -z is the plane y=0 but I don't get how it is this?
    think of a two D Cartesian line analogy
    Offline

    15
    ReputationRep:
    (Original post by khanpatel321)


    The last part usually the plane is given in Cartesian form and you can just sub the equation of the line into the equation of the plane and find lambda.

    In the mark scheme it says the plane x -z is the plane y=0 but I don't get how it is this?
    The x-z plane is exactly the same as the y=0 plane.
    • Thread Starter
    Offline

    19
    ReputationRep:
    (Original post by B_9710)
    The x-z plane is exactly the same as the y=0 plane.
    Yeah, but I don't understand why
    Offline

    12
    ReputationRep:
    (Original post by khanpatel321)
    Yeah, but I don't understand why
    For all points in the X-z plane, y=0


    Posted from TSR Mobile
    • Thread Starter
    Offline

    19
    ReputationRep:
    (Original post by TeeEm)
    think of a two D Cartesian line analogy
    (Original post by khanpatel321)
    Yeah, but I don't understand why
    (Original post by drandy76)
    For all value of the X-z plane, y=0


    Posted from TSR Mobile
    Ohh, so does that mean the plane x +z is also the plane y= 0 ?

    and the plane y +z is the plane x=0
    Offline

    15
    ReputationRep:
    (Original post by khanpatel321)
    Yeah, but I don't understand why
    Think about it this way. The z=0 plane is the x-y plane which makes sense because when you think about the x-y plane in 2D, you don't ever consider the Z coordinates because the Z coordinate for any point in the x-y plane is 0.
    Offline

    19
    ReputationRep:
    (Original post by khanpatel321)
    Ohh, so does that mean the plane x +z is also the plane y= 0 ?

    and the plane y +z is the plane x=0
    the x - y plane is z = 0
    the x - z plane is y = 0
    the y - z plane is x = 0
    • Thread Starter
    Offline

    19
    ReputationRep:
    (Original post by TeeEm)
    the x - y plane is z = 0
    the x - z plane is y = 0
    the y - z plane is x = 0
    (Original post by B_9710)
    Think about it this way. The z=0 plane is the x-y plane which makes sense because when you think about the x-y plane in 2D, you don't ever consider the Z coordinates because the Z coordinate for any point in the x-y plane is 0.
    (Original post by drandy76)
    For all points in the X-z plane, y=0


    Posted from TSR Mobile
    Ok thanks guys
    Offline

    20
    ReputationRep:
    it looks like "the x minus z plane" :mad:
    Offline

    15
    ReputationRep:
    (Original post by khanpatel321)
    Ohh, so does that mean the plane x +z is also the plane y= 0 ?

    and the plane y +z is the plane x=0
    It's not the x minus z plane or x plus z plane. It's the xy plane or xz plane. Yu don't say x minus y plane. You just say xy.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    What's your favourite Christmas sweets?
    Useful resources

    Make your revision easier

    Maths

    Maths Forum posting guidelines

    Not sure where to post? Read the updated guidelines here

    Equations

    How to use LaTex

    Writing equations the easy way

    Student revising

    Study habits of A* students

    Top tips from students who have already aced their exams

    Study Planner

    Create your own Study Planner

    Never miss a deadline again

    Polling station sign

    Thinking about a maths degree?

    Chat with other maths applicants

    Can you help? Study help unanswered threads

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.