Analysis and Approaches for IBDP Maths Ebook 1 | Page 28

Your Practice Set – Analysis and Approaches for IBDP Mathematics
Solution
(a) f (3) � 2
(M1) for correct approach
�f �1 (2) � 3
A1 N2
[2]
(b) f (4) � 3
(M1) for correct approach
( f f )(4)
� f (3)
(A1) for composite function
� 2
A1 N3
[3]
(c) For correct y -intercept A1
For any two correct points from ( �1, � 1) , (3, � 2)
and (4, � 3)
A1 N2
[2]
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