7.4 – page 421. TRANSLATIONS & VECTORS
VECTOR – a quantity that has both direction and magnitude, or size
and is represented by an arrow drawn between two points.
The vector is named PQ, which is read as “vector PQ.”
INITIAL POINT – starting point
TERMINAL POINT – ending point
Q
3 units up
P
(0,0)
5 units to the
right
The COMPONENT FORM of this vector PQ is ‹5, 3›.
The COORDINATE NOTATION (x, y)
(x + a, y + b) or
(x, y)
(0 + 5, 0 + 3)
9.7
Use the Distance Formula to find the Magnitude of a vector.