Time Axis in Line Graph

In an arithmetic line graph, time is plotted along which axis?

Correct Answer Explanation

In an arithmetic line graph, time (hour, day, week, month, year) is plotted along the X-axis.

Key Points:

• Time is the independent variable placed on X-axis.
• The value of the variable (dependent variable) is plotted along Y-axis.
• Plotted points are joined by lines to form the time series graph.
• This helps understand trends, periodicity, and seasonality in data.

Why Other Options Are Wrong

• A. Y-axis: Y-axis shows the variable values, not time.
• C. Both axes: Only X-axis shows time; Y-axis shows the measured variable.
• D. Neither axis: Time must be on one axis for a time series graph.