time m
0042 0.38
0629 1.18
1208 0.46
1844 1.62
Using your knowledge of the effects of a, b, c and d, fit a sine OR cosine curve (whichever is the easier to model) to your data from part c). Hence write a rule for H(t).
Explain why you chose sine or cosine for your model.
• Show your algebraic working out and/or some of the graphs you generated by informed
trial and error to determine the equation of your sine curve.
• Include a graph of your final model for H(t).