• Support PF! Buy your school textbooks, materials and every day products Here!

How to find a vector parallel to a line?

  • Thread starter r_swayze
  • Start date
  • #1
66
0
How do I find the vector parallel to the line x+2 = 1/2y = z-3 ?

the book says its < 1,2,1 > but I have no idea how to get there?
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
251
Hi r_swayze! :smile:

Just go for the obvious …

that line is parallel to the line x = 1/2y = z, from which it's pretty obvious that if you increase x by 1, the you increase y by 2, and z by 1 :wink:
 
  • #3
66
0
oh I think I see now, so the +2 and -3 from the x and z equations are just telling the shift in position?
 
  • #4
tiny-tim
Science Advisor
Homework Helper
25,832
251
Yup! :biggrin:
 

Related Threads on How to find a vector parallel to a line?

  • Last Post
Replies
1
Views
13K
Replies
8
Views
720
Replies
12
Views
2K
  • Last Post
Replies
3
Views
1K
Replies
5
Views
770
Replies
1
Views
4K
Replies
13
Views
505
Replies
2
Views
2K
Top