Which function models the number of users x months after the website was launched?

The number of users on a website has grown exponentially since its launch. After 1 month, there were 45 users. After 3 months, there were 405 users. Which function models the number of users a months after the website was launched? Select the correct answer below: O f ( I) = 9(5) O f ( I) = 8(3) I O f(I) = 15(3) z O f( I) = 9(3 ) O f(I) = 15(2) 3