Apps. and Interpretation for IBDP Maths Ebook 1 | Page 22

Your Practice Set – Applications and Interpretation for IBDP Mathematics
(a)
Write down the value of
(i) f ( � 4) ;
(b)
(ii)
f �1 ( � 4) .
On the same diagram, sketch the graph of
[3]
The displacement and the velocity of a particle can be modelled by the above function f ,
1
f � .
where x and f( x ) are the displacement and the velocity of the particle respectively.
[3]
(c) Interpret the meaning of f ( �2) � 0 .
[1]
3. The diagram below shows the graph of a function f , for �3� x � 3.
(a)
On the same diagram, sketch the graph of
(b) Write down the value of f (1)
(c)
Write down the value of
The range of f is { y : b � y � 1} .
1
f � .
[3]
[1]
f � 1 (0)
[1]
(d) Write down the value of b .
[1]
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