Question

Which relation represents a function?
•{(0,0).(2.3).(2,5)(6,6)}
{(3,5). (8,4). (10,11).(10,6)}
• {(-2,2).(0,2).(7.2) (11,2)
•{(13,2). (13,3). (13,4), (13,5)}

Answer 1

Answer: C

Step-by-step explanation: you can not have two of the same x values in a function.