1. Solve the boundary value problem y" + 2y + y =0 with boundary conditions y(0) = 0 and y(1) = 1 using the finite difference method. Write a matlab code that will take as input the number of points n and will output y(x). Plot the solution for 4, 10, 14 and 20 points. 

2. If the answer for y(0.5) is 0.82436064, plot the absolute error vs. the number of points.