| Exam Board | OCR MEI |
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| Module | C2 (Core Mathematics 2) |
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| Year | 2009 |
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| Session | June |
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| Topic | Exponential Functions |
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- On the insert, complete the table and plot \(h\) against \(\log _ { 10 } t\), drawing by eye a line of best fit.
- Use your graph to find an equation for \(h\) in terms of \(\log _ { 10 } t\) for this model.
- Find the height of the tree at age 100 years, as predicted by this model.
- Find the age of the tree when it reaches a height of 29 m , according to this model.
- Comment on the suitability of the model when the tree is very young.