Find the maximum and minimum values of z = 3x+ 4y subject to the single constraint x^2 + 4xy + 5y^2 = 10

Help me solve this problem by code matlab

[Image Analyst]

Here's some help: http://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers

In the meantime, look at the function meshgrid(), linspace(), contour(), and surf() so you can visualize those functions.