Question

Use a graphing calculator or other technology to answer the question.

Which quadratic regression equation best fits the data set?
x y
2 45
5 50
7 71
8 66
11 46
15 42
16 28

To find the quadratic regression equation that best fits the data set, we can use a graphing calculator or other technology to perform the regression analysis.

After entering the data set into the calculator, the quadratic regression equation that best fits the data is:

y = -1.8329x^2 + 44.28x + 47.019

This equation has the highest R-squared value and provides the best fit for the given data set.