Is X the Dependant Variable?

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

Why is X the independent variable?

Independent Variables Represent Function Inputs

Independent variables are the ones we can freely manipulate, by plugging in any input value. In most math problems, we think of x as the independent variable, since it's the one we usually change.

Is X the Dependant?

Scientists like to say that the "independent" variable goes on the x-axis (the bottom, horizontal one) and the "dependent" variable goes on the y-axis (the left side, vertical one).