1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Line Intersection

  1. Oct 26, 2004 #1
    Find symmetric equations of the line that passes through the point (0,1,2) and meets each of the lines x = y = z + 2 and x/-2 = (y+3)/1 = z/3.

    Those equations can be written as:
    r = (0, 0, 2) + t(1, 1, 1)
    r = (0, -3, 0) + s(-2, 1, 3)

    Now, I can't seem to find any direction to go with this. I tried a whole lot of different things that all eventually led nowhere. First, I gave co-ordinates to the intersection points and then i created to slopes in between these points. But i eventually came up with equations with like 8 variables in them so I couldn't figure that one out. Can someone lead me in some sort of direction? Any would would be appreciated.
  2. jcsd
  3. Oct 26, 2004 #2
    Btw, i do have the solution,

    x/2 = (y-1)/-1 = (z-2)/-2

    if anyone is curious.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?