Question

Each year, the number of smartphone users increases by 20 percent across the world. In order to write an exponential growth equation for this situation, what additional piece of information do you need?(1 point)Responsesthe current number of smartphone usersthe current number of smartphone usersthe number of people in the worldthe number of people in the worldthe amount of time that has elapsedthe amount of time that has elapsedthe number of smartphone users 10 years from now

Answer 1

You need the current number of smartphone users (the initial amount).

Reason: with a 20% annual increase the model is N(t) = N0(1.2)^t, so you must know N0 (the number at t = 0) to write the full equation.