Page 115 - Math Course 1 (Book 1)
P. 115

Graphing Ordered Pairs and Relations




                Identify Ordered Pairs


                 Write the ordered pair that names point A.       Write the ordered pair that names point B.

                 A. (2, 5)                                        A. (6, 6)
                 B. (3, 5)         6                              B. (0, 6)       6  B
                 C. (2, 3)         5                              C. (0, 0)       5
                 D. (3, 2)                                        D. (6, 0)
                                   4        A                                     4
                                   3                                              3
                                   2                                              2
                                   1                                              1
                                   0    1    2    3    4    5   6                 0    1    2    3    4    5   6


                   Answer                                         Answer




                MO. 3 - L5b
                 Use Tables and Graphs to

                     Represent Relations



                            Vocabulary A-Z
                            Let us learn some vocabulary                    Let’s Begin





                                                                  Identify Ordered Pairs
                Relation


                A set of ordered pairs such as {(1, 2), (2, 4), (3, 0),   Example
                (4, 5)} is a relation.

                                                                   Express the relation {(1, 4), (2, 2), (3, 0), (0, 2)} as a
                                                                   table and as a graph. Then determine the domain
                    x        1        2        3        4
                                                                   and range.

                    y        2        4        0        5
                                                                      x     y       6
                                                                                    5
                                                                      1     4             (1, 4)
                Domain                              Ordered                         4
                                                     Pairs            2     2       3
                is the relation set of x-coordinates.  (1, 2)                                (2, 2)
                                                     (2, 4)           3     0       2  (0, 2)
                                                     (3, 0)                         1           (3, 0)
                      The Domain is {1, 2, 3, 4}.    (4, 5)           0     2       0
                                                                                         1    2    3    4    5   6
                Range                               Ordered
                                                     Pairs
                is the relation set of y-coordinates.  (1, 2)                        The domain is {0,1,2,3}.
                                                     (2, 4)             Answer       The range is {0,2,4}
                                                     (3, 0)
                      The Range is {2, 4, 0, 5}.     (4, 5)

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