Date _________          Period_________                                                             

                                     Determining Functions:  Practice A

Determine if the following are functions… Write “function” or “not function” on the line.

      _______________________                    _____________________                  ______________________  

              { (6, 1), (4, 2), (6, -3), (2, 5) }                          { (5, 8), (3, -2), (-2, -5), (0, 0)}

              __________________                                                             _________________

                 __________________                                                                  ____________________

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              { (2, 4), (2, 5), (2, 6), (2, 7) }                          { (0, 0), (3, -1), (-5, -5), (4, 0)}         ____________________                                  ____________________

              { (5, 5), (4, 4), (3, 3), (2, 2) }                           { (0, 2), (0, 4), (0, 6), (0, 8)}

              ____________________                              ____________________

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