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.
Definition of X-Axis. The coordinate plane is formed by the intersection of two number lines, a horizontal number line and a vertical number line. The horizontal number line is called the x-axis. The equation of x-axis is y = 0. The y-coordinate or ordinate of every point on x-axis is equal to 0. The figure shows the coordinate plane formed by the intersection of the x- and y- axes. Their point of intersection is called the origin.