Yes, indeed the X-axis is the independent variable. And as such, the Y-axis is the dependent variable.
Because y is dependent on the value of x
The x axis is usually the horizontal number line on a bar graph.
the x-axis is the horizontal line. The y-axis is the one going up and down.
A y-axis is the vertical number line of a two coordinated graph and a x-axis is the horizontal number line.