Question 1102002
(The hyperlink you gave seemed to work.)



The two reported data points are enough to work with.


Model would use {{{y=a*b^x}}} and your two points from the graph are (0,100) and (2,225).  x is time and y is population size.


The points each give an equation.
{{{100=100*b^0}}} not telling much;


{{{225=100*b^2}}}, which lets you find value of b.