Does the following represent a function? 
f = [ (3, -1), (2, 5), (4, -6), (3, 4), (5, -8) ]
                                             
                                          
                                          
                                        
											 
											Answer:
No, because 3 (domain) has two different ranges: -1 and 4.
Also, apply the vertical line rule.
Step-by-step explanation: