Yes, the displacement of a particle from a point A to a point B is a vector quantity because it can be characterized by a magnitude (distance between the two points) and a direction (the direction from point A to point B).

Magnitude and direction are the two characteristic attributes of vectors.

Comment. Distinguish between the concepts displacement and distance. Displacement is a vector, carrying information about direction in addition to magnitude, while distance is a scalar. The distance between points A and B is equal to the magnitude of the displacement from A to B.