Modelling Water What can you tell me about this curve?

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Presentation transcript:

Modelling Water What can you tell me about this curve? This equation models the volume of 1 kg of water as temperature changes. What can you tell me about this curve?

The Data How can we decide accuracy? What is important to consider? What scale should we use?

The Graph Why is the x axis temperature? What is missing from this graph? What would an examiner be looking for?

The Graph: Analysis Is this graph what you expected? If you saw this graph what equation would you expect created it? What is the minimum point? Given its real life context, does this surprise you?

Density and Ice How is density and volume related? Given that we use 1kg of water, what does that mean? What is going on at 0? Given its real life context, does this surprise you?

Point of Discontinuity A function is said to have a point of discontinuity at x = a or the graph of the function has a hole at x = a, if the original function is undefined for x = a, whereas the related rational expression of the function in simplest form is defined for x = a.

Why?