Remember that a function is a type of relation for which there is exactly one output for each input.
Mapping Diagram:
Relation: The relation does not represent a function.
Practice makes perfect
The relation we are given is a set of (x,y) ordered pairs.
{(1,2),(5,2),(5,4),(7,6),(11,6),(11,8) }
To express the given relation in a mapping diagram, we will need a column of x-values to represent the domain and a column of y-values for the range. Then, we draw an arrow from each x value to its corresponding y-value.
Mapping Diagram:
A function is a type of relation for which there is exactly one output for each input. Therefore, the relation is a not function.
