Question

The population of a bacterial colony increases approximately by
100
%
every hour. Which type of function would best be used to model this situation?

Linear function

Logarithmic function

Exponential decay function

Exponential growth function

Answer 1

Exponential growth function.

Reason: a 100% increase each hour means the population doubles each hour, so P(t) = P0·2^t (t in hours). This is percentage-based (multiplicative) growth, not linear or logarithmic, and it's growth (not decay).