kiaragoodman8608 kiaragoodman8608 12-10-2020 Mathematics contestada Verify the linear approximation at (0, 0) for f(x, y) = 7x + 4 5y + 1 â 4 + 7x â 20y Let f(x, y) = 7x + 4 5y + 1 . Then fx(x, y) = ________
