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## Homework Statement

If x1 and x2 are the initial and the final position vectors of particle respectively. Then, displacement of the particle is delta x = x2 - x1

But my question is how to know that the displacement is negtivive and its direaction? (could you provide a practical example so that I can understand easily?)

2. The attempt at a solution

2. The attempt at a solution

Only I know that if x2 is greater than x1, the the delta x is positive

If x1 is greater than x2, delta x is negative

if x1 = x2, then delta x is zero