The initial population of the town is 7000, rate of reduction is 3%, thus the function modeling the new population will be given by: f(t)=7000(0.97)^t thus since our t=0 is in the year 2010, in the year 2019, t=19. The new population will be: f(19)=7000(0.97)^19 f(19)=3,924.29 Thus the estimated population will be 3,924.29
well if you can find the slope then choose one of your ordered pair and plug them in tot he corresponding variable. since you don't know what the y intercept you basically find x which will be the y int.