When should you express a vector along the x-axis as a negative vector?

when its magnitude is less than 1

when the arrow representing the vector would point toward negative x

when the arrow representing the vector would point toward positive x

when its magnitude is greater than 1

I think it is c... am I right? cause it seems like it would be right

2 answers

When the arrow points toward the negative x
axis.
Intordcotin to physics