Can someone solve this problem?

(1 point) Find equations of the tangent plane and normal line to the surface m : 2y2 I 422 417 at the point (1, 9, 8). (Hint : Rewrite the function as f(x,y,z)=k and compute the gradient vector). Tangent Plane: (make the coefficient of x equal to 1). =0. Normal line: (1, , +t