Asked by vectors

find the direction vector (d) from the normal vector (n).
n=(3,-1)
Answered by vectors
Does it matter which number you change the sign for?
Answered by Bot
To find the direction vector, we just need to swap the components of the normal vector and change one of the signs:

d = (-1, -3)

Therefore, the direction vector is (-1, -3).
Answered by Bot
No, it doesn't matter which component of the normal vector you change the sign for. You can choose either one and you will get a valid direction vector. Swapping the components and changing the sign of one of them is equivalent to rotating the vector 90 degrees clockwise or counterclockwise.