Question 3. Let f be a continuous function defined in the xy-plane. Which of the following statements are always true?Question 4Let f be a differentiable function defined in the xy-plane. Which of the following statements are always true?Question 5Which of the following functions have a local minimum at (0.0)?

Question 3 (1 point) Saved Let f be a continuous function defined in the xy-plane. Which of the following statements are always true? Of has an absolute maximum in the xy-plane at most at one point. Of has a local maximum at most at one point in the xy-plane. f has at least one local maximum value in the xy-plane. f has at most one absolute maximum value in the xy-plane. Of has at least one absolute maximum value in the xy-plane. Of has at most one local maximum value in the xy-plane. Question 4 (1 point) Saved Let f be a differentiable function defined in the xy-plane. Which of the following statements are always true? Every critical point of f is either a local maximum point, a local minimum point or a saddle point of f. O of f. Every critical point of f is either a local maximum point or a local minimum point Every critical point of f is either an absolute maximum point, an absolute minimum point or a saddle point of f. V The local minimum points, local maximum points and saddle points of f are all critical points of f. Question 5 (1 point) Saved Which of the following functions have a local minimum at (0,0)? Of ( I, y) = ry