Math Problem Statement

Use power regression to find a power function that best fits this data. Enter your equation below. Round all values to 3 decimal places

x 6 7 8 9 10 11 y 1604 2058 2324 2778 3427 4118

Solution

Power regression finds a relationship in the form y=axby = ax^b, where aa and bb are constants to be determined.

To solve this, I will:

  1. Linearize the data by taking the logarithms of both xx and yy.
  2. Apply linear regression on the transformed data.
  3. Convert back to the power form.

Let's go through the steps. I will calculate this equation for you.The power function that best fits the given data is:

y=105.334x1.511y = 105.334 \cdot x^{1.511}

Would you like more details on how this was calculated or have any other questions?

Here are five related questions for further exploration:

  1. How would the power function change if we extended the data range?
  2. Can power regression be applied to any type of data, or are there specific conditions?
  3. How does power regression compare to exponential or polynomial regression?
  4. What are the real-world applications of power functions in modeling data?
  5. How does the correlation coefficient affect the interpretation of the power model?

Tip: When interpreting regression models, always check the residuals to ensure the model fits the data well.

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Math Problem Analysis

Mathematical Concepts

Power Regression
Logarithmic Transformation
Linear Regression
Data Modeling

Formulas

Power function: y = ax^b
Logarithmic transformation: log(y) = log(a) + b*log(x)

Theorems

Linear regression

Suitable Grade Level

Grades 10-12