Your Practice Set – Applications and Interpretation for IBDP Mathematics
Solution
( a ) |
For correct edges |
A1 |
|
For correct vertices |
A1 |
|
For correct weights |
A1 |
[ 3 ]
( b ) ( i ) 3 A1
( c )
( d )
( ii ) 2 A1
�0 1 0 0 1 1�
� �
� 1 0 1 1 1 0
� �0 1 0 1 0 0� M � �
� A2
�0 1 1 0 1 0�
�1 1 0 1 0 1� � 1 0 0 0 1 0� �
�
�3 1 1 2 2 1�
� �
� 1 4 1 2 2 2
� �1 1 2 1 2 0�
2 M � �
� ( M1 ) for valid approach
�2 2 1 3 1 1�
�2 2 2 1 4 1� � 1 2 0 1 1 2� �
� Thus , the total number of walks of length 2 from E to A is 2 .
A1
[ 2 ]
[ 2 ]
[ 2 ]
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