mark
The image below shows a contour diagram for a function f(x,y) of two variables with a number of points scattered over the diagram. I see nine obvious critical points. Mark those points right on the diagram and, for each of them, indicate whether those points are
- Relative maxima,
- Relative minima, or
- Saddle points.
To answer this question, you should print out the diagram, draw your gradients on your printout, scan or snap a photo of you drawing, and upload that image.
