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Problem 6. (1 point) Here is a contour plot of the function f(,y) - 4+2+ y - 3xy. Remaining time: 112:12 mins (Click the image to enlarge it) By looking at the contour plot, characterize the two critical points of the function. You should be able to do this analysis without computing derivatives, but you may want to compute them to corroborate your intuition The critical point (1.1) is a ??? choose one from the list) The second critical point is at the paint and it is a ??? Note: You can earn partial credit on this