x-axisThe Axes. The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).

### Is the z axis dependent or independent?

When you need to plot a third variable, you need a 3-dimensional graph with a third axis, the z-axis. The dependent variable is still on the y-axis and the original independent variable is still the on the x-axis, but now the second independent variable is on the z-axis.

### Which is the independent variable?

The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable. … In an experiment, the researcher is looking for the possible effect on the dependent variable that might be caused by changing the independent variable.

### What are the XYZ axis?

A. X. A three-dimensional structure. The x-axis and y-axis represent the first two dimensions

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