1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Parallel Planes and Points (3D)

  1. Apr 19, 2009 #1
    1. The problem statement, all variables and given/known data

    Point A (3,2,-1) is equidistant from two planes (parallel), known as P1 and P2. P1 has the equation 2x-y+2z+4 = 0. Find the equation of P2.

    2. Relevant equations

    D = abs val(ax_o + by_o + cz_o + d) divided by sqrt (a^2 + b^2 + c^2)

    3. The attempt at a solution

    I used the distance formula and figured out that the distance between the point and either plane is 2. But what do I do now? I know that the plane I'm looking for, since it's parallel, has a perpendicular vector that is the same as P1, if not a scalar multiple. But what next? Thanks in advance.
  2. jcsd
  3. Apr 19, 2009 #2
    Compute a point on the other plane.
  4. Apr 19, 2009 #3
    how do i do that?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook