Question 3- Consider the following data and solve the following questions by using MATLAB. x o 1 2.5 3 4.5 5 6 y 2 5.44 7.35 7.56 8.45 9.19 12 a- Find the coefficients of the following polynomial that can be used for interpolation by using the MATLAB. P(x) = a1 + a2x + a3x2 + 24x3 + ax4 + agx5 + azx6 b-Use linear spline interpolation to determine y at x=3.5 by using MATLAB. C-Use cubic spline interpolation to determine y at x=3.5 by using MATLAB