Results 1 to 2 of 2

Math Help - To find the equation of a line given it is contained in a plane and cuts another line

  1. #1
    Junior Member
    Joined
    Nov 2009
    Posts
    60

    To find the equation of a line given it is contained in a plane and cuts another line

    I think the question here has a mistake or something, please help me out...

    Given the equation of this line L (in euclidian space): L : r= (0+m)i + (3+0m)j + (9+m)k


    and given that a line N which we have to find is contained in plane P: x + 2y + 2z =18
    and given that N cuts L perpendicularly, how can we find N?


    i'm confused because according to my calculations, L cannot be perpendicular to plane P....
    please help, much appreciated!!!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,693
    Thanks
    1466
    Quote Originally Posted by Yehia View Post
    I think the question here has a mistake or something, please help me out...

    Given the equation of this line L (in euclidian space): L : r= (0+m)i + (3+0m)j + (9+m)k


    and given that a line N which we have to find is contained in plane P: x + 2y + 2z =18
    and given that N cuts L perpendicularly, how can we find N?


    i'm confused because according to my calculations, L cannot be perpendicular to plane P....
    please help, much appreciated!!!
    You are correct that L is not perpendicular to P. However, it is still possible that a line in P can be perpendicular to L. For example, the plane, y= x, is not perpendicular to the y- axis, but the y-axis, that lies in that plane, is perpendicular to the y-axis.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Find equation of Line where Plane Meets
    Posted in the Advanced Algebra Forum
    Replies: 7
    Last Post: February 28th 2011, 02:05 AM
  2. Replies: 1
    Last Post: November 2nd 2010, 12:49 AM
  3. Replies: 1
    Last Post: May 12th 2010, 11:36 AM
  4. Replies: 9
    Last Post: July 31st 2009, 05:39 AM
  5. Replies: 5
    Last Post: October 13th 2008, 10:16 AM

Search Tags


/mathhelpforum @mathhelpforum