answer the following

Do the following for the function given below. (time, cell phone owners in a small town), where time is measured in years after 2000 a. Describe an appropriate domain and range for the function. h. Make a rough sketch of a graph of the function. G. Briey discuss the validity of the graph as a model of the true function. a. Choose the appropriate domain for the function below. 0 A. The domain is cell phone users during the given years; 500 people to 45,000 people. 0 B. The domain is years from 2000 to 2010; 2000 to 2010, where 2000 is year 0. O C. The domain is cell phone users during the given years; 4 million people to 1.3 billion people. 0 D. The domain is years from 2000 to 2010; 0 to 10, where 2000 is year 0. Choose the appropriate range for the function below. 0 A. The range is cell phone users during the given years; 4 million people to 1.3 billion people. 0 B. The range is years from 2000 to 2010; 0 to 10, where 2000 is year 0. O C. The range is cell phone users during the given years; 500 people to 45,000 people. 0 D. The range is years from 2000 to 2010; 2000 to 2010. where 2000 is year 0. b. Make a rough sketch of a graph of the function. Choose the correct graph below. Let t represent number of years after 2000 and p represent number of cell phone users. 0 A. O B. O c. O o. 75 10 Q 15 50000 Q 50000 Q 10 Q 3 8 3 40000 40000 8 3 3 A A g 6 9x g 30000 Q g 30000 9x 0 ex on Q a 4 E 20000 a 20000 .3 4 E 2 I3 E 10000 I3 10000 I3 2 I3 '5 0 Z 0 0 0 0 50000 024 6810 024 6810 0 50000 1 (years) 1 (years) p (cell phone users) p (cell phone users) c. Briey discuss the validity of the graph as a model of the true function. Choose the correct answer below. 0 A. The validity of the graph as a model of the true function can never be known. 0 B. The graph is not a valid model of the true function. 0 C. The graph is a valid model of the function because it is reasonable to assume that number of cell phone users increases as number of years after 2000 increases. 0 D. The graph is a valid model of the function because it is reasonable to assume that number of years after 2000 increases as number of cell phone users increases