3. A population of fish is living in an environment with limited resources. As a consequence, the environment can only support the population if it contains no more than 100,000 fish (otherwise some fish would starve due to an inadequate supply of food, etc.). This particular population of fish (measured in # of fish) as a function of time (measured in years), P(t), is often modeled by the function 100, 000et et + 3 P(t) = (a) What is the initial population of fish? 1 (b) What is the meaning of P'(t)? What are the units of P'(t)? (c) Find P'(t) and show that it is always positive. What does this suggest about the popu- lation?

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter2: Functions
Section: Chapter Questions
Problem 30P: In this problem you are asked to find a function that models in real life situation and then use the...
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3. A population of fish is living in an environment with limited resources. As a consequence,
the environment can only support the population if it contains no more than 100,000 fish
(otherwise some fish would starve due to an inadequate supply of food, etc.). This particular
population of fish (measured in # of fish) as a function of time (measured in years), P(t), is
often modeled by the function
100, 000et
P(t)
et +3
(a) What is the initial population of fish?
1
(b) What is the meaning of P'(t)? What are the units of P'(t)?
(c) Find P'(t) and show that it is always positive. What does this suggest about the popu-
lation?
(d) A different population of fish is modeled by the function Q(t), graphed below.
40000
y = Q(t)
30000
20000
10000
1
2
4
5
6.
Make a rough sketch of the graph of Q'(t). Is Q'(t) always positive?
Transcribed Image Text:3. A population of fish is living in an environment with limited resources. As a consequence, the environment can only support the population if it contains no more than 100,000 fish (otherwise some fish would starve due to an inadequate supply of food, etc.). This particular population of fish (measured in # of fish) as a function of time (measured in years), P(t), is often modeled by the function 100, 000et P(t) et +3 (a) What is the initial population of fish? 1 (b) What is the meaning of P'(t)? What are the units of P'(t)? (c) Find P'(t) and show that it is always positive. What does this suggest about the popu- lation? (d) A different population of fish is modeled by the function Q(t), graphed below. 40000 y = Q(t) 30000 20000 10000 1 2 4 5 6. Make a rough sketch of the graph of Q'(t). Is Q'(t) always positive?
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