show code in matlab

Problem 1 You are given the following data: 8 8 f(x) 3 6 19 99 291 444 a. Use nearest neighbour interpolation to find f(x) for the following x values: 2.7, 3.8, and 6.3 b. Implement a Matlab function or script to perform interpolation based on the closest 2, 3, and 4 points using Lagrangian interpolating polynomials C. Run your function/script on the x values given in a) for the closest 2-, 3-, and 4-point Lagrangian interpolating polynomial