Find the point of intersection of the given plane and the line that is perpendicular to the given plane and passes through (8, 4, 5). the xy-plane (x, y, z) = (1 (x, y, z) = ( + -/5 points find the point of intersection of the given plane and the line that is perpendicular to the given plane and passes through (2, 3, 7). the plane y = -12 (x, y, z) =( (x, y, z) = +-15 points find the equation of the sphere of radius 4 that lies above the xy-plane that just touches the xy-plane at the point (2, -7,0).