Exponential Growth and Bacteria Modeling

Exponential Growth and Bacteria Modeling

Assessment

Interactive Video

Mathematics, Biology, Science

9th - 12th Grade

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

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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

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the approximate number of bacteria after 30 days?

121,510

110,000

130,000

100,000

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which button on the calculator is used to calculate e raised to a power?

3rd EXP

2nd LN

4th POW

1st LOG