To express the set of given (x,y) ordered pairs in a table of values, we'll list all of the x-values in one column and all of the y-values in another column.
x | y |
---|---|
2 | 1 |
2 | 4 |
4 | 3 |
6 | 2 |
8 | 1 |
To graph an (x,y) ordered pair, start by identifying the x- and y-coordinates on the axes. Then, trace along the grid lines to the point on which both coordinates lie. We'll do this for every ordered pair in the relation.
To show a relation of (x,y) ordered pairs as a relation, list all of the unique x-values in one vertical list and all unique y-values in another vertical list. Then, use arrows to connect corresponding x- and y-values.
The domain of this relation is the set of all unique x-values and the range is the set of all unique y-values. D: R: {2, 4, 6, 8}{1, 2, 3, 4}