Find the function's relative maxima, relative minima, and saddle points, if they exist. (If an answer does not exist, enter DNE.) z = 14x² - xy - y² + 18y relative maximum relative minimum saddle point (x, y, z)= (x, y, z) (x, y, z) =

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 reyeal 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) = 2x³ + xy² + 5x² + y² local maximum value(s) local minimum value(s) saddle point(s) (x, y, f) =

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 − 6y2 − 9x

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) = 5e"(y2 – x2) local maximum value(s) local minimum value(s) saddle point(s) (х, у, f) %3D