The x-variable gauges the time elapsed (e.g., seconds, milliseconds, etc.).
The y-variable gauges the value of an entity as judged by an individual and with respect to the fulfillment of a single purpose. The unit of measure is generally labeled the Emotional Unit. The Emotional Unit may be thought of as the minimum amount of neurological resources over a given time frame that are required to acknowledge or cognize an entity exists (e.g., action potentials per second). Under this model of emotions, the Emotional Unit is the measuring stick for both affect and anxiety. Generally speaking, anxiety is considered to be an investment of energy that, under ideal circumstances, is assigned to specific entities in order to mark their value.
The graph below depicts the y-axis (measured in Emotional Units), the x-axis (e.g., seconds), and the line of the equation y = x, or the function f(x) = x, beginning at time zero.
The X-axis and the Y-axis