Using the change of base to help solve an exponential equation

Using the change of base to help solve an exponential equation

Assessment

Interactive Video

Mathematics, Business

11th Grade - University

Hard

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The video tutorial explains how to solve an equation involving exponents by isolating the exponent and using logarithms. It highlights the limitations of the one-to-one property and introduces the change of base formula for logarithms, which is necessary when using calculators that only support base 10. The tutorial provides step-by-step instructions on how to apply these concepts to solve for the variable X.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the first step to isolate the exponent in the equation involving five raised to the power of X?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain why the one-to-one property cannot be applied when comparing five raised to the power of X and six.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the change of base formula and how it is used when calculating logarithms with a base that is not available on a calculator.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Why is it necessary to rewrite logarithms when using a calculator that only computes base 10 logarithms?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the approximate value of X when solving the equation X - 3 equals log base five of six?

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