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The function P(t)=21000+1800t computes the population of a city from years 1980-2001, with t=0 representing 1980. What is the domain and range in correct interval notation?
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The function P(t)=21000+1800t computes the population of a city from years 1980-2001, with t=0 representing 1980. What is the domain and range in correct interval notation?
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Sep 24, 2019
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The function P(t)=21000+1800t computes the population of a city from years 1980-2001, with t=0 representing 1980. What is the domain and range in correct interval notation?
Mathematics
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Jeremy Wilken
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In year 2001, the corresponding value of t is 2001 - 1980 = 21. Thus the
domain is [0, 21]
The values of p(t) increase monotonically between those values of t, so the range of p(t) is p(0) = 21,000 to p(21) = 58,800.
range is [21000, 58800]
Maurizio Reginelli
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Sep 29, 2019
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Maurizio Reginelli
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