This GeoGebra applet attempts to visualize growth, decay, and half-life scenarios where the rate of change of a population is proportional to the existing population. Use green floating point to explore. Check Growth, Decay, or Half-Life checkbox. Check formula Checkbox to see derivation of formula. Check Instructions checkbox to read instructions. Enter Initial population in [math]P_0[/math] time for another instance in [math]t_1[/math] and population at this instance of time in [math]P_1[/math] in Growth or Decay mode. [math]P_1[/math] is automatically input in Half-Life mode.[br][br]For more on growth models check my online book [br]"Flipped Classroom Calculus of Single Variable"[br]https://versal.com/learn/vh45au/