my book says that if you have a parametrized line in 3 dimensions(adsbygoogle = window.adsbygoogle || []).push({});

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.

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# Homework Help: Simple linear algebra question (test in a few hours)

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