The number of members f (x) in Joe's health club increased by 25% every year over a period of x years. The function below shows the relationship between f (x) and x:

f (x) = 15 (1.25) x

Which of the following graphs best represents the function?

Base on the problem that the number of members in Joe's health club is increased by 25% every year over a period of time and the ask is to choose which if the following graphs best represents the function and the best answer would be letter B. where as the X=0 Y = 15 in the graph that gradually increasing