Following a personal foul by B3, the official indicates to Team A that they shall inbound the ball from a spot 10 feet from the sideline. In (a), A1 jumps in the air, over the designated spot, and passes the ball inbounds; (b) A1 has one foot within the designated-spot area but lifts it from the floor as the inbounds pass is made; or (c) A1 moves directly backwards from the designated spot by 6 feet and passes the ball inbounds.
Legal in (a), (b) and (c). As long as the thrower maintains any portion of his/her body on or above the 3-foot designated-spot area while making the throw-in, the throw-in shall be legal.