Let f(a, y) = er y Use the Second Partials Test to determine which of the following is true. O a) f(x, y) has a relative maximum at (0, 0). O b) f(x, y) does not have a critical point at (0, 0). O c) f(x, y) has a saddle point at (0, 0). d) f(x, y) has a relative minimum at (0, 0). Previous Save answer and View Summary