Page 263 - MATHEMATICS COURSE FOR SECONDARY SCHOOLS BOOK 2

a = a (or a = a) (a)
A
+6
From the diagram: AB =(64 ) (b) K +6
(b)
-4
X
B +4
-6
Y
From the diagram: XY =(-4 ) -6
+6 L
Vectors AB, KL, PQ and XY are called
displacement vectors.
From the diagram: KL =( 3 ) -4
Positive displacement (upwards)
Positive displacement (right)
Negative displacement (downwards)
Q +4
From the diagram: PQ =(-7 ) 4
Negative displacement 0 (left)
(c)
-7
P
257
AB =
(6 ) 4
-4 6
XY = ( )
KL = ( )
3 -4
PQ = ( )
-7 4