What does vector addition involve?

Vector addition involves combining two or more vectors to find a resultant vector, which is the overall effect of those vectors acting together. In this context, the process is summarized by the equation Vector1 + Vector2 = Resultant. Each vector has both a magnitude and direction, and when adding them, their magnitudes and directions must be considered to accurately determine the resultant vector. This process often involves using graphical methods, such as the head-to-tail method, or mathematical methods, such as breaking the vectors down into their components along specified axes.

The other options illustrate concepts that are not representative of vector addition. Adding scalar values does not account for direction, averaging vectors does not yield a resultant vector in the way vector addition does, and subtracting one vector from another is a different operation that results in a vector pointing in the direction opposite to the subtracted vector rather than combining their effects.