Exponential Growth and Bacteria Modeling

Exponential Growth and Bacteria Modeling

Assessment

Interactive Video

Mathematics, Biology, Science

9th - 12th Grade

Practice Problem

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial explains how to model the growth of bacteria using a continuous exponential growth function. Starting with 1,000 bacteria growing at a rate of 16% per day, the tutorial demonstrates how to set up the function P(T) = P0 * e^(kt), where P0 is the initial amount, k is the growth rate as a decimal, and T is time in days. The tutorial then applies this function to determine the number of bacteria after 30 days, using a calculator to evaluate the expression, resulting in approximately 121,510 bacteria.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial number of bacteria mentioned in the problem?

500

1,000

2,000

1,500

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the growth rate of the bacteria per day?

16%

12%

20%

10%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which mathematical function is used to model continuous growth?

Quadratic function

Logarithmic function

Exponential function

Linear function

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the function P(t) = P0 * e^(kt), what does 'P0' represent?

Time period

Growth rate

Initial population

Final population

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the growth rate expressed in the exponential growth function?

As a fraction

As a whole number

As a percentage

As a decimal

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of 'k' in the given problem?

1.6

16

0.16

0.016

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using a calculator in this problem?

To determine the time period

To evaluate the exponential expression

To find the initial number of bacteria

To calculate the growth rate

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