Simple linear algebra question (test in a few hours)

  • #1
224
0
my book says that if you have a parametrized line in 3 dimensions
i.e.:
x - 1 = 4t
y - 5 = 3t
z - 2 = 7t,

the vector <4, 3, 7> (coefficients of t) is a vector parallel to that line.

My notes clearely say that the vector <4, 3, 7> is a normal vector to the parametrized line.

Which one is right?

Thanks.
 

Answers and Replies

  • #2
76
0
It should be parallel.

- harsh
 
  • #3
224
0
Ok thanks. That's what I thought...I should drink some caffiene before I go to class and take notes. :smile:
 

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