USE MATLAB

-2 0 USE MATLAB 1.25 1.75 3 2a) Using Lagrange interpolation method to find the 3d order polynomial that passes through the data points. Provide the details of the four Lagrange base functions. Use the interpolation result to calculate the value of y at x= 2 ; (2b) Make the following plots: (i) the original data and the 3rd order polynomial together as a single plot; (ii the four Lagrange base functions