The number of polio cases answer is (decreasing or increasing) by answer : (370488.09%, 25.81%, 74.19%, or 3704.8809%) For "Predict the number of polio cases in 2019" the function f is in thousands of Polio!For "predict in which year there will be 1 case of polio cases" use f to estimate the number of cases in 1980. Then use f to estimate when there was half that number of cases!

The numbers of polio cases in the world are shown in the table for various years. Year Number of Polio Cases (thousands) 1988 350 1992 138 1996 32 2000 4 2005 3.2 2007 1.3 Let f(t) be the number of polio cases in thousands / years since 1980. Use a graphing calculator to draw a scattergram of the data. Is it better to model the data by using a linear or exponential model? |Exponential Find an equation of f. Hint f (t ) = 2816.6777e-0.2597t X Round the coefficients to 4 decimal places. The number of polio cases is Select an answer v|by |Select an answer |per year. Predict the number of polio cases in 2019. 112 x Hint Predict in which year there will be 1 case of polio. Hint 2038 X Find the approximate half-life of the number of polio cases. Hint 2.6690 years Question Help: Message instructor Submit