Answer: A mapping diagram is a way to visualize a relation by plotting its ordered pairs on a coordinate plane.
For the relation {(2, 8), (-1, 5), (0, 8), (-1, 3), (-2, 3)}, the mapping diagram would look like this:
(x,y)
(-2,3) (-1,3)
(0,8)
(-1,5) (2,8)
In the above diagram, each point represents an ordered pair from the relation. You can see that the relation maps x-coordinates -2, -1, 0, 1 and 2 to y-coordinates 3,3,8,5 and 8 respectively.
Explanation: