Mathematics for IGCSE & O level - Vectors (Section 6 - No. 29)
What does the vector [3, -2] mean in terms of movement in a coordinate plane?
Move 3 units left, 2 units up.
Move 3 units left, 2 units down.
Move 3 units right, 2 units down.
Move 3 units right, 2 units up.
Giải thích
In the vector [x, y], x is the horizontal movement and y is the vertical movement. A positive value means right/up, a negative value means left/down.