Answer:
It will double every hour.
Step-by-step explanation:
f(x) = 4(2)^x
This is an exponential function so the number of people will increase at a faster rate each hour. It will accelerate.
Lets try entering a few values:
After 1 hour, people = 4*2 = 8
After 2 hours , people =4*2^2 = 16
After 3 hours, people = 4(2)^3 = 32
After 4 hours, people = 4(2)^4 = 64.
It is doubling every hour.
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