Exponential Decay: Understanding the Formula and Solving Problems

Exponential Decay: Understanding the Formula and Solving Problems

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

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The video tutorial explains exponential growth and decay, focusing on the mathematical representation and graphing of these concepts. It covers the general exponential formula, highlighting the significance of the K value and its role in determining growth or decay. The tutorial includes a practical example using radioactive decay to demonstrate how to calculate the decay rate. Key points include understanding the Y intercept, the role of negative powers, and the application of logarithms in solving exponential equations.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the graph of an exponential decay function behave as X increases?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the Y intercept in an exponential function?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe how to find the K value using the half-life of a substance.

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