Solution
1
( a ) f ( 3 ) � 2 ( M1 ) for correct approach
�f �1 ( 2 ) � 3 A1
( b ) f ( 4 ) � 3 ( M1 ) for correct approach
( f f )( 4 ) � f ( 3 ) ( A1 ) for composite function
( f f)( 4 ) � 2
A1
( c ) For correct y -intercept A1 For any two correct points from ( �1 , � 1 ) , ( 3 , � 2 )
and ( 4 , � 3 ) A1
[ 2 ]
[ 3 ]
[ 2 ]
11 www . seprodstore . com