Aliyah and Diego started to run in a 5 kilometer-long race at exactly the same time. By 3:00 P. M., Aliyah had completed half of the race. For the rest of the race, Aliyah ran at a constant rate of 0.25 kilometer per minute. Diego did not run the race at a constant speed. A linear function can be used to model the total distance d(t)d(t) , in kilometers, that Aliyah runs from the beginning of the race in t minutes, where t=0t=0 represents 3:00 P. M. Write an equation that defines the linear function d. Explain how you determined the equation for the function.