Write the exponential decay function

Devise an exponential decay function that ts the given data, then answer the accompanying question. Be sure to identify the reference point (t= 0) and units of time. The homicide rate decreases at a rate of 3% per year in a city that had 600 homicides/yr in 2008. At this rate, when will the homicide rate reach 400 homicides/yr? (3 What is the reference point (t = 0)? \"3" A. the year 2008 B. the initial number of homicides, 600 c. the rate. 3% ' : D. the future number of homicides, 400 What are the units of time? . A. percents " B. homicides/yr 53' C. years D. cities 1 Write the exponential decay function. 'ya) = E] (Type an expression. Round coefcients to three decimal places as needed.)