please do both parts, and show scripts used in matlab. thank you!

12. (A* m script file is required for this question) Y=[932208943274563123186089541378160922482850323639054811574168218004] 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