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Exponentials and Logarithms

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Question 4
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The population of a species of plant in a field is modelled using the formula P=50e0.1tP = 50e^{0.1t}P=50e0.1t Where t t\,t is the number of weeks since the population was first recorded.

a.

Write down the number of the plants when the population was first recorded.

[1]
b.

Find the rate of increase in the population 10 weeks after the population was first recorded.

[2]
c.

Find how many weeks it takes for the number of plants to exceed 300.

[4]

Exponentials and Logarithms Questions

  1. AS Level
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  3. /Exponentials and Logarithms