Math Problem Statement

linearise this equation

linearise this equation: y = -Ae^(-Cx) + B

Solution

The given equation is:

y=AeCx+By = -Ae^{-Cx} + B

To linearize this equation, we aim to express it in a form that can be plotted as a straight line, such as Y=mX+cY = mX + c, where mm is the slope and cc is the intercept.

Steps to linearize:

  1. Isolate the exponential term: Subtract BB from both sides:

    yB=AeCxy - B = -Ae^{-Cx}

  2. Eliminate the negative sign and divide by AA:

    ByA=eCx\frac{B - y}{A} = e^{-Cx}

  3. Apply the natural logarithm (ln\ln) to both sides to remove the exponential:

    ln(ByA)=Cx\ln\left(\frac{B - y}{A}\right) = -Cx

This is now a linear form with respect to xx, where:

  • Y=ln(ByA)Y = \ln\left(\frac{B - y}{A}\right)
  • m=Cm = -C (the slope)
  • X=xX = x

Thus, the equation is linearized as:

ln(ByA)=Cx\ln\left(\frac{B - y}{A}\right) = -Cx

This equation can be plotted with xx on the horizontal axis and ln(ByA)\ln\left(\frac{B - y}{A}\right) on the vertical axis. The slope of this line will give you C-C, and the intercept can provide additional insight depending on the problem.


Would you like further details or have any specific questions about this?

Here are some related questions you could explore:

  1. How does the slope CC affect the rate of decay in the original equation?
  2. What does the intercept of the linearized form represent physically?
  3. How can this form help in fitting data to an exponential model?
  4. How would you find the constants AA, BB, and CC from experimental data?
  5. What are the practical applications of such exponential decay equations?

Tip: Linearizing exponential functions is a common technique in data analysis, making it easier to determine parameters through simple linear regression methods.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Logarithms
Linearization

Formulas

y = -Ae^(-Cx) + B
ln((B - y)/A) = -Cx

Theorems

Properties of Exponential and Logarithmic Functions

Suitable Grade Level

Undergraduate level or higher