Analysis and Approaches HL Practice Paper Book | Page 240

8 . The vector equations of the lines L

1 and L

2 are

1� y x�8� � 3� z respectively .

4

�17� � 5 � � � � � r � 1 � t �2 and

�10� � 3 � � � � �

( a ) Find the coordinates of P , the point of intersection of L

1 and L

2

.

The coordinates of R are ( 3 , 0 , 5 ) . Q is a point on L

1 such that

[ 4 ]

�

RQ _{� �i �} 7 _j� 4 _{k .}

( b ) By using the vector equation of L

1

, find the coordinates of Q . [ 4 ]

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