A contour map is given for a function f. Use it to estimate f (2, 1) and f, (2, 1). A X f (2, 1) = f(2, 1) =Find the first partial derivatives of the function. R(x, y) = x (x, V ) = Fy(x y)=Find the first partial derivatives of the function. u = tet du at = Ou Ow =Find the first partial derivatives of the function. f (x, y) = f(x, V) = f(x y) =Find the first partial derivatives of the function. du Ox au ay duFind the indicated partial derivatives. f (x, y) = In + (x2 + y?) ; f. (8. -2) f.(8, -2) =Use implicit differentiation to find oz/dx and oz/dy. x2 + 16 + >9 = 4xyz Or = dy =