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Mila [183]
3 years ago
15

Scientists released 5 foxes into a new habitat in year 0. Each year, there were

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

f(x)= 5*4^x

Step-by-step explanation:

Since every year there are four times as many foxes as the year before, every year we need to multiply the previous population by 4. This leads to having to multiply by 4^{n}after n years have gone by. So we are in the presence of a population growth that goes as an exponential function of base "4".

A function f(x) that represents an exponential growth of such type can be written as:

f(x)= N_0 * 4^x

where x represents the variable time in years, 4 is the multiplicative base, and N_0 is what is defined as the "initial value" of the population (in our case 5 - for the 5 foxes initially released).

Notice also that when we start counting - time zero (x=0) the exponential form 4^0 = 1 becomes a one (1) and the expression reduces to this initial value  N_0 (5 in our case).

Therefore, the function representing this population growth is: f(x)= 5*4^x

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