Graphical representation of relationships
Relationships can also be graphically displayed.
By drawing in two vertical lines, one obtains a coordinate system.
The upward axis is the y-axis or ordinate. The x-axis is also called abscissa.
Graph of an relationship
For relationships we have different value pairs. We can draw these as points and get the relationship graph.
|Weight (in kg)||Price (in €)|
The table gives the following points:
$(1|4)$, $(2|8)$ and $(3|12)$