What do you mean by the term Arithmetic line graph. Explain briefily

An arithmatic line graph is also called time series graph. In this graph time/hour/day/date, week, month, year) is plotted along the X-axis and the corresponding values of the variable along the Y-axis.
Arithmetic line graphs, along or time series graphs can mainly be of two types :
(i) One variable graphs.
(ii) Two or more than two variable graphs.