Question

Q4 The table below shows the number of active users on a social media platform over time. Write an exponential function to represent the number of users N(t) after t days.
t n(t)
0 50
1 75
2 112.5
3 168.75

Answer 1

N(t) = 50(1.5)^t

Explanation: at t = 0 there are 50 users, and each day the number multiplies by 75/50 = 1.5 (a 50% daily increase), so N(t)=50·(1.5)^t.