A vector represents both a magnitude (size) and a direction — unlike a plain number, it tells you not just 'how much' but also 'which way,' making it perfect for describing motion and force.
1-A 2-A 3-A 4-A | 5 √(a2 + b2) 6 component 7 = 13 8 = 7 9 = (1,4) | 10 = (3,3)