Question 32
Jonathan is investigating the spread of a virus measured by the number of daily recorded cases NNN. He believes N=AektN = Ae^{kt}N=Aekt.
a.[2]
Express lnN \ln N\,lnN in terms of ttt
b.
[2]
Plot lnN \ln N\,lnN against t t\,t for this data:
| ttt | 8 | 11 | 18 |
|---|---|---|---|
| NNN | 12 | 24 | 90 |
c.[4]
Using the graph, estimate the value of A A\,A and the value of kkk.
Exponentials and Logarithms Questions
54 exam-style questions on Edexcel A Level Maths Exponentials and Logarithms, covering 14.1 Exponential Functions, 14.2 y = e^x, 14.3 Exponential Modelling, 14.4 Logarithms, 14.5 Laws of Logarithms, 14.6 Solving Equations using Logarithms, 14.7 Working with Natural Logarithms, and 14.8 Logarithms and Non-Linear Data. Each one has a worked solution and a mark scheme showing where the marks go.