What does it mean to be financially responsible? It's a complex question with a complex answer, but at its core is a simple truth: To be financially responsible, you need to live within your means. And to live within your means, you must spend less than you make.
longitudinal axis. A straight line running fore and aft through the center of gravity. It is horizontal when the airplane is in the rigging position. The aircraft rolls about this axis. See axes.
X-axis. When referring to the cartesian plane, the x-axis or horizontal axis refers to the horizontal width of a two or three-dimensional object. The illustration shows the x-axis as going left-to-right and intersecting both the y-axis and z-axis. A good example of what uses the x-axis is a computer mouse. As the mouse moves left or right the x-axis value increases and decreases, which allows the computer to know where the mouse cursor is on the screen. Below is a JavaScript script, which if enabled shows you the mouses x-axis and y-axis position as you move your mouse on your screen.