At the beginning of a population study, a city had 390,000 people. each year since, the population has grown by 7.3% . let t be the number of years since start of the study. let y be the city's population. write an exponential function showing the relationship between y and t .

Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.