at the beginning of a population study a city had 240000 people each year since the population has grown by 7.8% let t be the number of years since start of the study let y be the cotys population write an exponential function showing the relationship between y and t

y = 240000 x e^ (0.078 x t)

Step-by-step explanation:

This is exponential growth, so the power at the exponential function will be positive (negative is for exponential decay.) Since it is increasing by 7.8 percent exponentially we can write an exponential function relating y with t.