Answer:
The approximate difference in the growth rate of the two populations is 40%.
Step-by-step explanation:
The general exponential growth model is
Where, a is initial value, r is growth rate and t is time.
In the given graph, red curve passing through the points (2,22.5) and (3,33.75).
.... (1)
.... (2)
Divide the equation (2) by equation (1).
The graph rate of red curve is 50%.
In the given graph, purple curve passing through the points (7,19.4) and (8,21.4).
.... (3)
.... (4)
Divide the equation (4) by equation (3).
The graph rate of red curve is 10%.
The approximate difference in the growth rate of the two populations is
Therefore the approximate difference in the growth rate of the two populations is 40%.