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Adding Two Sixth Order Polynomial Regression Equations

Please see the attached file.

I have 2 data sets that determine a y-value based on known x-values (the x-values are given as temp degrees C) ---- each of those actual line graphs have been fitted with an approximate "best fit" line determined by Excel with 2 separate 6th order line equations.

Our homework asks us to add the 2 polynomial equations together and then determine the calculated y-values for each of the known x-values shown (temperature) and then plot that line on the attached graph.

Show me how to add the 2 polynomials and then provide me the math that will calculate the resultant polynomila given the known x-values.


Solution Preview

The solution file is attached.

Please note the following with regard to this work:

(1) As per your instructions, I have just added the two polynomial equations and graphed the resulting equation. I have also provided the Table of values (Temp, Heat ...

Solution Summary

Elaborate discussion regarding how to go about obtaining the sum of two sixth order polynomial line equations is included.