Round your answers to two digits. Consider the following function h(x, y) : h (x, y ) = (2+ 2) 4 . (y + 3) 3 Find linear approximation about (2, -3) and express it as: h(x, y ) ~ atb . x +c .y+d . x2+k.y?. . The coefficient a is equal to . The coefficient b is equal to . The coefficient c is equal to . The coefficient d is equal to 0 . The coefficient k is equal to 0