how to use polyfit matlab to fit a polynomial of order 4

Question : Use polyfit matlab to fit a polynomial of order 4 to the following data and plot the polynomial x1 1.06 1.17 1.32 1.55 1.89 2.41 2.963 3.575 y4 4.193 4.44 4.73 5.032 5.24 5.314 5.265 5.071 and evaluate…

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