Let x3 + 3 = 126. Find y"(x) at the point (5, 1). y"(5) =Use implicit differentiation to find the points where the parabola defined by x22my+y2+4m8y+ 20: 0 has horizontal and vertical tangent lines. The parabola has horizontal tangent lines at the point(s) The parabola has vertical tangent lines at the point(s)