Using MATLAB Using MATLAB Using MATLAB Using MATLAB Using MATLAB

12. ( Am script file is required for this question) 574168218004] a. Use 'polyfit' and 'polyval' to create a first, second and third order fit for the data. Plot both the original X and Y and the fitted ones. Use subplot to present three different fitting graphs in one figure. b. Use the curve fitting toolbox to create a first, second and third order fit for the data. Take a screen shot of each of the results. Select variables to import using checkboxes Create variables matching preview. Create vectors from each column using column names. Create vectors from each row using row names