Apps. and Interpretation for IBDP Maths Ebook 1 | Page 28

Your Practice Set – Applications and Interpretation for IBDP Mathematics
4. An aluminium lamina of area
A � pT �q .
2
A mm is heated. Its temperature T C can be modelled by
(a)
(b)
Interpret what p represents.
Interpret what q represents.
It is given that the areas of the aluminium lamina are
60 C respectively.
2
5 mm and
2
8 mm at 0C and
[1]
[1]
(c) Find the values of p and q .
(d) Find the difference of the areas of the aluminium lamina after a drop of 140 C .
[2]
[3]
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