Creating a graph to represent a given situation and Interpret the data.
The incidence of a disease is the rate at which a disease occurs in a population. It is
calculated by dividing the number of new cases of a disease in a given time period (typically
a year) by the size of the population. To avoid small decimal numbers, the rate is often
expressed in terms of a large number of people rather than a single person. For instance,
the incidence of measles in the United States in 1974 was about 10 cases per 100,000 people
From 1974 to 1980, there were drastic fluctuations in the incidence of measles in the United States. In 1975, there was a slight increase in incidence from 1974. The next two years saw a
substantial increase in the incidence, which reached a maximum in 1977 of about 26 cases per 100,000 people. From 1977 to 1979, the incidence fell to about 5 cases per 100,000 people. The incidence fell much faster from 1977 to 1978 than from 1978 to 1979. Finally, from 1979 to 1980, the incidence stayed about the same.
Sketch a graph of the function for the incidence of measles
What are the Domain and Range of this Graph