Six guinea pigs are released in an area with no natural predators. The guinea pig population quadruples every year. Write a function p that represents the guinea pig population at a given time t measured in years

Six guinea pigs are released in an area with no natural predators The guinea pig population quadruples every year Write a function p that represents the guinea class=

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SOLUTION:

Case: Exponential equation

Method:

Initial population: 6

Quadruple each year, multiplier= 4.

Where t is the number of years, the population is:

[tex]P=6(4)^t[/tex]

a) The inverse is calculated as:

[tex]\begin{gathered} \frac{P}{6}=4^t \\ log(\frac{P}{6})=log4^t \\ log(\frac{P}{6})=tlog4^ \\ t=\frac{log(\frac{P}{6})}{log(4)} \\ P^{-1}=\frac{log(\frac{t}{6})}{log(4)} \end{gathered}[/tex]

b) Approximately how long to reach 1000 guinea pigs

[tex]\begin{gathered} P^{-1}=\frac{log(\frac{1000}{6})}{log(4)} \\ P^{-1}=3.69 \end{gathered}[/tex]

Final answers:

a)

[tex]P^{-1}=\frac{log(\frac{t}{6})}{log(4)}[/tex]

b)

[tex]P^{-1}\approx3.7[/tex]

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