A line chart displays knowledge like a number of information details connected by straight line segments. It can be appropriate for exhibiting tendencies or modifications after some time.??, ???? ????? ???? ??? ??? ??? ? ???, ??? ??? ??? ?? ??? ??? ??? ?? ????. ?? ??????? ????? ?? ?? ??, ?? ???? ???? ??? ?? ??? ?????. ??, ???? ??? ???? ??????? ????