Rearranging x=x0e^-lambda t in the form y=mx+c

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Homework Help Overview

The discussion revolves around rearranging the equation x = x0e^(-lambda t) into the linear form y = mx + c, specifically with y as ln(x) and x as t. Participants are exploring the transformation of the equation using logarithmic properties.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to take the natural logarithm of both sides, leading to a form involving ln(x) and questioning the representation of -lambda as the gradient and ln(x0) as the y-intercept. Other participants discuss the logarithmic properties and suggest a different expression involving the sum of logarithms.

Discussion Status

The discussion is active with participants questioning the correctness of the transformations and exploring different interpretations of the variables involved. There is no explicit consensus, but guidance on logarithmic manipulation has been provided.

Contextual Notes

There is some confusion regarding the variable h0, which was clarified to represent x0. The participants are also navigating the implications of their transformations on the interpretation of the equation.

Mike Shandon
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Hi, How could I rearrange x=x0e^-lambda t into the form y=mx+c, where y is equal to ln x and x is equal to t?

Thank you in advance

I tried to solve the problem myself, by taking the natural log of both sides, this left me with:

ln x = -lambda t * lnx0

However, I am not sure if this answer is correct or not

If this is correct, would -lambda represent the gradient? And, would ln x0 represent the y intercept
 
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What is h0?
The logarithm of a product is the sum of logarithms, so you should get ##-\lambda t + \ln(x_0)##.
Mike Shandon said:
If this is correct, would -lambda represent the gradient? And, would ln h0 represent the y intercept
Sure.
 
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Thank you
 
mfb said:
What is h0?
The logarithm of a product is the sum of logarithms, so you should get ##-\lambda t + \ln(x_0)##.
Sure.

My mistake h0 was supposed to represent x0
 

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