4. [0/3 Points] DETAILS PREVIOUS ANSWERS SCALCET8 14.7.012. MY NOTES PRACTICE ANOTHER Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f( x, y) = x3 + y3 - 3x2 - 9y2 - 9x local maximum value(s) DNE X local minimum value(s) DNE X saddle point(s) ( x, y, f ) = DNE X Need Help? Read It5. [1/3 Points] DETAILS ll PREVIOUSANSWERS I SCALCET814.7.014. I MYNOTES ll PRACTICEANOTHER I Find the local maximum and minimum values and saddle point(s) of the function. If you have threedimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(X, y) = 6y cos(x), O S X S 271 local maximum value(s) DNE local minimum value(s) saddle point(s) (X, y, f) = Need Help? Submit