The monthly mean temperature of a city, \(T\) degrees Celsius, may be modelled by the equation
$$T = 15 + 8 \sin (30m - 120)^\circ$$
where \(m\) is the month number, counting January = 1, February = 2, through to December = 12
- Using this model, calculate the monthly mean temperature of the city for May, the fifth month.
[2 marks]
- Using this model, find the month with the highest mean temperature.
[2 marks]
- Climate change may affect the parameters, 8, 30, 120 and 15, used in this model.
- State, with a reason, which parameter would be increased because of an overall rise in temperatures.
[1 mark]
- State, with a reason, which parameter would be increased because of the occurrence of more extreme temperatures.
[1 mark]