Try It 10.87: Evaluating an Exponential Growth Model
Practice solving an exponential growth problem by finding the growth rate and using it to predict a future amount. Suppose a bacteria population grows from to in hours. Using the exponential growth formula , substitute the values to find the rate: . Dividing by gives . Applying the natural logarithm yields , so the growth rate is . To find the population after hours, substitute the rate and time into the formula: . Simplifying the exponent () gives , which evaluates to . Therefore, there will be bacteria.
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Ch.10 Exponential and Logarithmic Functions - Intermediate Algebra @ OpenStax
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Try It 10.87: Evaluating an Exponential Growth Model
Try It 10.88: Evaluating an Exponential Decay Model
As a data analyst forecasting the exponential growth of your company's new software platform, you need to project the future number of active users. Recall the standard procedure for solving an exponential growth application and arrange the following mathematical steps in the correct order.
A logistics company is monitoring the growth of its delivery fleet. The number of vehicles is growing exponentially following the formula , where is the final amount, is the initial amount, is the growth rate, and is the time in years. If the company started with 50 vehicles and now has 150 vehicles after 3 years, which equation is correctly set up to solve for the growth rate ?
As a cloud infrastructure analyst, you use the exponential growth formula to project future data storage requirements for your organization. Match each mathematical component of the formula with its corresponding role in this capacity planning scenario.
In a professional growth analysis using the exponential model , if the growth rate constant is unknown, it is necessary to first calculate the value of using current data before you can determine the projected future amount .
Procedural Steps in Exponential Growth Forecasting
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A project manager at a startup is tracking the growth of the company's subscriber base. The number of active subscribers grew from 100 to 500 over the first 6 months. To predict future growth, the manager uses the exponential model , where represents the monthly growth rate. Arrange the following steps in the correct order to solve for the exact value of the growth rate .
An IT systems administrator is analyzing a sudden exponential increase in server error logs. The number of daily errors grew from 100 to 500 over a 6-hour period. To forecast the number of errors at 24 hours using the continuous exponential growth model , the administrator first needs to find the exact growth rate, . Based on the standard exponential growth formula, which equation correctly substitutes the known values to solve for the growth rate?
A business analyst is tracking the growth of a new digital service's subscriber base. Initial data shows that the number of subscribers grew from to over the first 6 weeks of the launch. To forecast future expansion, the analyst applies the exponential growth model . Match each mathematical expression used in this evaluation process to its corresponding conceptual role.
An operations manager is tracking the exponential growth in demand for a new product, which increased from units to units over weeks. To solve for the growth rate in the resulting simplified equation , the manager must apply the natural logarithm () to both sides of the equation.
Projecting Infrastructure Capacity