please solve yellow marker

3) Quadratic spline interpolation can be obtained by employing polynomials of the following form p.(x) = a,(x - x,)' + b;(x - 1;) + q; Keeping the original intervals and imposing periodic condition at open ends, (a) derive the quadratic spline formulation using the four arbitrary points (71, y1), (12, 12), (13, y3), and (14, y4). (b) employ the formulation for interpolating (0, 0), (1, 1), (2, 4), and (3, 3). 4) Provide Hermite interpolation for the given points of the previous problem. Use the slopes of the quadratic spline