Find parametric equations given point and two planes

Click For Summary
SUMMARY

The discussion focuses on deriving parametric equations for a line through the point (5, -1, 3) that is parallel to the line of intersection of the planes defined by the equations 2x - y + z = 1 and 6x - y - z = 3. The normal vectors for the planes are identified as <2, -1, 1> and <6, -1, -1>. The cross product of these normal vectors yields the direction vector <2, -4, 4>, which is essential for formulating the parametric equations.

PREREQUISITES
  • Understanding of vector operations, specifically cross products
  • Knowledge of parametric equations of a line in three-dimensional space
  • Familiarity with normal vectors of planes
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study the derivation of parametric equations from a point and a direction vector
  • Learn about the geometric interpretation of cross products in three-dimensional space
  • Explore examples of finding intersections of planes
  • Review the concept of normal vectors and their significance in defining planes
USEFUL FOR

Students studying vector calculus, geometry enthusiasts, and anyone involved in solving problems related to three-dimensional space and parametric equations.

getty102
Messages
38
Reaction score
0

Homework Statement



Find the parametric equations through point (5,-1,3) parallel to the line of intersection between 2x-y+z=1 and 6x-y-z=3, where 0≤t≤1

Homework Equations


1. Find normal vectors for both planes
2. Take cross product of both normal planes
...


The Attempt at a Solution


normal to plane 1 is <2,-1,1>
normal to plane 2 is <6,-1,-1>

cross product to both normal vectors is (1+1)i-(-2+6)j+(-2+6)k
=2i-4j+4k=<2,-4,4>

I wasn't sure how to input the point or if I am on the right track?
 
Physics news on Phys.org
You're on the right track. What do the parametric equations for a line generally look like?
 

Similar threads

Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
4
Views
2K
Replies
4
Views
5K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
2
Views
1K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K