Vector subtraction is the process of finding the difference between two vectors, which are mathematical objects that have both magnitude and direction. To subtract vector B from vector A, you can visualize it as adding the opposite of B to A. This is often represented as A - B = A + (-B), where -B is the vector B pointing in the opposite direction. In a coordinate system, vector subtraction can be performed by subtracting the corresponding components of the vectors. For example, if A = (x₁, y₁) and B = (x₂, y₂), then the result of the subtraction is given by A - B = (x₁ - x₂, y₁ - y₂). This method allows for easy calculations and visualizations in physics and engineering.