Function Input Output Diagram. Functions a function is a relation in which each input has only one output. 13 2 is a graphic repre sentation of equation 2 which is the short run pro duction function for radios.
X is not a function of y because the input y 3 has multiple outputs. All the outputs the actual values related to are together called the range. In some cases it is preferable to draw the whole line instead of just a line segment.
Each x y pair is represented by a line segment connecting the input point on the x axis to the output point on the y axis.
The value that is put into a function is the input. A mapping diagram represents a function if each input value is paired with only one output value. A trigger defines how a function is invoked and a function must have exactly one trigger. In some cases it is preferable to draw the whole line instead of just a line segment.
