Plot Optimal Decision variable and Corresponding Residuals

Question

I have this matlab cvx setup for my problem to estimate least squares solution

n = 100;
A = randn(14,n);
b = randn(14,1);
cvx_begin
variable x(n)
   minimize( norm( A*x-b ) 
   cvx_end

echo off

As Cvx shows the optimal value after running i do not know how i can generate the plot of optimal decision value and residuals