Using MATLAB, plot the function

$f(x_1,x_2)=2x_1^3{x}_2^2+x_1^2{x}_2^3+4x_1{x}_2+3$

the linearization, and the quadratic approximation, all on one graph.

In a different graph plot the magnitude of the error of the linear approximation as a

function of delta and plot the error of the quadratic approximation as a function of delta.

You can treat delta as a constant added identically to $x_1$ and $x_2,$ allowing for a one$-$

dimensional plot. Optionally, for a more interesting $2-$variable plot, you can vary delta for

each variable. If you choose a $1$D plot, plot both errors on the same plot for comparison.

If you choose a $2-$variable plot, separate the plots.