Exponential Growth and Decay Calculus, Relative Growth Rate, Differential Equations, Word Problems
The Organic Chemistry Tutor・2 minutes read
Population growth can be mathematically modeled using the equation dp/dt = k * p, with increasing population size leading to a proportional increase in growth rate, allowing for the calculation of population at any time using the formula p(t) = p0 * e^(kt) and the estimation of future population. The relative growth rate can be determined from data points, such as calculating it as 0.05 to estimate the population of 2473 rabbits in 2010.
Insights
- Population growth is directly linked to the size of the population, with increases in population resulting in a proportional growth rate.
- The formula p(t) = p0 * e^(kt) enables the calculation of population at any given time, providing a method for estimating future populations based on initial values and growth rates.
Get key ideas from YouTube videos. It’s free
Recent questions
How is population growth equation defined?
The equation for population growth is dp/dt = k * p, where dp/dt represents the growth rate, k is the relative growth rate, and p is the population size. This formula shows how the population changes over time based on its current size and growth rate.
What does increasing population size lead to?
Increasing population size leads to a proportional increase in the growth rate. This means that as the population grows, the rate at which it grows also increases proportionally, resulting in a continuous cycle of growth.
What is the general formula for population at any time?
The general formula for population at any time is p = ce^(kt), where c represents the initial population size, e is the base of the natural logarithm, k is the growth rate, and t is the time elapsed. This formula allows for predicting the population size at any given point in time.
How can population at any time be calculated?
Population at any time can be calculated using the formula p(t) = p0 * e^(kt), where p0 is the initial population size, e is the base of the natural logarithm, k is the growth rate, and t is the time elapsed. By plugging in the appropriate values, the population at a specific time can be determined.
How can the relative growth rate be determined?
The relative growth rate, denoted as k, can be calculated using data points. In the context provided, the relative growth rate was found to be 0.05. This value represents the rate at which the population is growing relative to its current size, allowing for further analysis and predictions regarding population growth.
Related videos
Khan Academy
Population growth rate based on birth and death rates | Ecology | AP Biology | Khan Academy
Bozeman Science
Exponential Growth
The Organic Chemistry Tutor
Logistic Growth Function and Differential Equations
The Organic Chemistry Tutor
Exponential Growth and Decay Word Problems & Functions - Algebra & Precalculus
Khan Academy
Population regulation | Ecology | Khan Academy
Summary
00:00
Population Growth Equation and Future Estimation
- Equation for population growth: dp/dt = k * p, where dp/dt is the growth rate, k is the relative growth rate, and p is the population size.
- Population growth is proportional to population size: Increasing population size leads to a proportional increase in growth rate.
- Deriving the general formula for population at any time: Integrating the equation leads to p = ce^(kt), where c is the initial population and k is the growth rate.
- Calculating population at any time: The formula p(t) = p0 * e^(kt) allows for determining population at any given time.
- Determining the relative growth rate: Using data points, the relative growth rate k can be calculated as 0.05.
- Estimating future population: By substituting values into the formula, the population in 2010 is approximately 2473 rabbits.
