can i get help on this question from my homework please?

(3 points) Consider any smooth function f defined on R2. Recall that the definition of the discriminant of f(x,y) is given by D(x,y) = fxxfyy - fxy For each of the following, find a function f satisfying the given property. i. D(0,0) = 0 and (0,0) is a local minimum point of f(x,y). ii. D(0,0) = 0 and (0,0) is a saddle point of f (x,y)