Question content area top Part 1 Find the critical points of the following function. Use the Second Derivative Test to determine​ (if possible) whether each critical point corresponds to a local​ maximum, local​ minimum, or saddle point. If the Second Derivative Test is​ inconclusive, determine the behavior of the function at the critical points. f left parenthesis x comma y right parenthesis equals 6 x squared plus 7 xy squared minus 3 x plus 1