In which axis is the independent variable plotted on a graph?

The independent variable is plotted on the x-axis of a graph. This is because the independent variable is the factor that is intentionally manipulated or changed by the researcher to observe its effect on the dependent variable. By placing the independent variable on the x-axis, it allows for a clear representation of how changes in this variable affect the dependent variable, which is typically plotted on the y-axis. This standard convention helps in interpreting data visually and analyzing relationships between the two variables. Understanding this setup is fundamental in fields like biology, where experimental designs and results are often presented graphically.