Maths Ex 1 Q - Help!!!! (1 Viewer)

duxxx

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The tidal heights over the next five days for the Yangtze River mouth in Shanghai are shown in screenshot below.
Screen Shot 2016-10-14 at 2.13.05 PM.png
The heights in the tidal prediction chart show the height above the chart datum which is 7m. For example, a low tide of 0.5m is actually a depth of 7.5m.

a)Use the tidal data to synthesise a model for the depth of water at the Yangtze River mouth for all the data you have captured.
A horizontal translation is required in your model. Use the following information to assist you
The general trigonometric function
f(x) = asinb)x+c) + d
has an amplitude of a, a period of 2pi/b, a horizontal translation of c units to the left and a vertical translation of d units up.

b) Produce a single graph containing the actual data given in the tidal prediction chart and your model. Comment on the strength and limitations of the model.
 

LC14199

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Would probably be a good idea to post this in the appropriate section man. There's a maths section lower down where people answer questions. This part of the forum is only for thoughts on exams that are already done, or are going to be done.
 

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