The graph of a function f is shown below.GraphA paraboloid, plane, and a point are on the graph. The paraboloid has a maximum at (0,0,24), opens in the negative z direction, and is symmetric around the z-axis. The plane is tangent to the paraboloid at the point (3,3,6). The point (3,3,6) is on both the paraboloid and the plane.Find an equation of the tangent plane to the surface z=f(x,y) at the specified point.f(x,y)=24-x2-y2