Find an explicit description of the line 3x+2y = 0 in R2 through the origin.

the answer is:

span {[2, -3]} , but how?

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- Mar 12th 2013, 11:24 PMyangxexplicit description of a line?
Find an explicit description of the line 3x+2y = 0 in R2 through the origin.

the answer is:

span {[2, -3]} , but how? - Mar 13th 2013, 05:03 PMNehushtanRe: Explicit description of a line?
The line in is spanned by any nonzero vector such that lies on the line. is one such vector; another would be .

- Mar 13th 2013, 05:23 PMPlatoRe: explicit description of a line?
I do not necessarily disagree with reply #2.

However, the point is on the line

That line contains , so its direction vector is .

Thus in traditional vector geometry its equation is

So notation is everything here. Unless you tell us about the notation in use in your notes, we cannot really answer.