Mathematics for IGCSE & O level - Vectors (Section 2 - No. 31)
If a vector 'a' represents the translation of a point to the right 4 units and down 2 units, what is the vector?
[4, -2]
[-4, 2]
[-4, -2]
[4, 2]
Giải thích
Positive x values mean right. Negative y values mean down.