Understanding Continuous vs Discrete Models

Understanding Continuous vs Discrete Models

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains how to solve a sales growth problem using mathematical equations and logarithms. It begins by introducing the problem and identifying key terms, then moves on to formulating an equation to determine when sales exceed a million dollars. The tutorial demonstrates solving the equation using logarithms and discusses the importance of interpreting the solution correctly. It also covers the concept of modeling, highlighting the difference between continuous and discrete models, and explains how to handle rounding in such contexts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main goal of the problem discussed in the video?

To find the year when sales first exceed a million dollars.

To compare sales growth with another company.

To calculate the total sales over ten years.

To determine the initial sales amount.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the problem considered a geometric progression (GP) rather than an arithmetic progression (AP)?

Because the sales increase by a constant amount each year.

Because the sales decrease over time.

Because the sales increase by a constant percentage each year.

Because the sales remain constant each year.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of using 1.2 instead of 20% in the equation?

1.2 is the initial sales amount.

1.2 represents a 20% increase in sales.

1.2 is easier to calculate with.

1.2 represents a decrease in sales.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does the instructor choose to use an equation instead of an inequality?

Equations provide more accurate results.

Equations are always simpler to solve.

Inequalities are not allowed in this context.

Equations avoid confusion with the direction of inequality signs.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical tool is used to solve the exponential equation?

Trigonometry

Logarithms

Calculus

Statistics

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using the change of base formula in this context?

To find the exact year of sales exceeding a million.

To make the equation compatible with the calculator.

To convert the equation into a different form.

To simplify the equation.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final conclusion about the year when sales exceed a million dollars?

After 11 years

After 12 years

After 10 years

After 9 years

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