Question 1181882
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{{{p(t)=200(0.8)^(t/10)}}}<br>
That is a decaying exponential function.  Every 10 years, the population gets multiplied by 0.8 or 80% -- i.e., decreases by 20%.<br>
The range of any decaying exponential function for positive t is from 0 to the starting value.<br>
Domain: [0,infinity)
Range: [200,0)<br>
Note mathematically the function value never reaches 0.  However, a population of animals is a whole number; so if the trend of the decaying exponential continues, the population will eventually be 0 -- making the range [200,0].<br>