Population data from three towns is displayed in the tables

Population data from three towns is displayed in the tables below. Which town has growth that follows an exponential model?

Population data from three towns is displayed in the tables below. Which town has growth that follows an exponential model? Roseville Smithton Travis None of the above

Solution

Check ratio of y2/y1 = y3/y2......so on

Roseville :   108/72 = 162/108 = 1.5

exponetial

Smithon : 120/78 = 1.538 ; 162/120 = 1.35

Ratios of y values are not same.So, data not expoenetial

Travis : 160/107 = 1.49 ; 266/213 = 1.248

Ratios of y values are not same.So, data not expoenetial

Answer: Roseville