According to the U.S. Census, the population of the city of San Antonio grew from 1.145 million to 1.328 million in 2010. (a) Assuming that this growth is exponential, construct a population model of the form P(t) = C e^kt, where P is the population in millions and t is in years. Let t = 0 represent the year 2000. (b) Use the model from (a) to estimate the population in 2015. (a) The exponential model for the population of San Antonio is P(t) = (b) The population in 2015 is estimated to be million.