Present your solution so that the sequence of logical steps is clear; with succth justcation for each step where it is not obvious. Note that marks will be deducted for solutions that do not show all the important logical steps and reasoning in reaching a conclusion. Answers should consist of complete sentences with a mixture of English words and mathematical symbols. Marks can also be deducted if solutions are much more convoluted than required. Handwriting must be legible and all sketches must be neat. It is your responsibility to verify that what you upload is a complete and legible scan of your work Assignments received after the due date will receive a late penalty, so we encourage you not to plan to submit last minute. Extensions are only given in exceptional cases, please consult Moodle and the special consideration guidelines. Question 3.1 (8 marks) Let f(:c, y) = $312 + 43y + @192 + 4 be a function on domain 1&2. a) Find Vf(:1:, y). b) Find all the stationary points of f. c) Using a Hessian matrix, classify each stationary point of f as a local maximum, a local minimum or a saddle point