What is the rule of 72 and where does it come from

What is the rule of 72 and where does it come from

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

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The video tutorial explains how to determine the time required to double an investment using continuous compounding. It introduces exponential functions and their inverses, logarithms, and demonstrates solving an exponential equation. The Rule of 72 is presented as a shortcut for estimating the doubling time based on interest rates.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the inverse of the function E to the X, and how is it represented?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the process of isolating the exponent when solving an exponential equation.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the interest rate affect the time required to double your money?

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