| Exam Board | AQA |
|---|
| Module | Paper 2 (Paper 2) |
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| Session | Specimen |
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| Topic | Exponential Functions |
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2 A zoologist is investigating the growth of a population of red squirrels in a forest.
She uses the equation \(N = \frac { 200 } { 1 + 9 \mathrm { e } ^ { - \frac { t } { 5 } } }\) as a model to predict the number of squirrels, \(N\), in the population \(t\) weeks after the start of the investigation.
What is the size of the squirrel population at the start of the investigation?
Circle your answer.
5
20
40
200