# Functions and Graphs : Heart Disease, Cancer and AIDS - Trends and Real World Implications

Can you please verify (numerically) the numbers listed on the document, I had to come up with total number of deaths in the US for the following years and diseases. The numbers I came up with are on the document along with a graph for each. Please add the numbers for 2005.

1985, 1990, 1995 and 2000

Heart Disease

Cancer

AIDS

I graphed the numbers that I came up with, and now I need to predict the numbers for 2005 for each disease.

I need to see the results for the 2005 estimated deaths for each disease as points in a rectangular coordinate system. Using a smooth line, connect the data points for each disease graph. Using each curve, make a reasonable prediction as to the number of deaths we might expect in 2005. Can these graphs be classified as functions? Please explain it to me. Why is it reasonable that negative numbers are excluded from both the domain and the range of each of the disease graphs? And what would the real-world implications be if these numbers were actualy part of the domain and or range? Help me understand please.

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#### Solution Summary

Disase deaths are modelled and predicted using a rectangular coordiante system. Real world applications are discussed. The solution is detailed and well presented.