Question

3. Which relationship represents a function?
A. {(6,-1), (4,8), (7,8), (5,6)}
B.{(–10,4), (5.0), (6,2), (7,4)}
C. {(0,0), (1,0), (5,0), (5,1)}
D.{(-2,-1), (0,0), (3,2). (4,5)}​

Answer 1

All of them represent function except c because the x values didn’t repeat for A, B, and D and they passed the vertical line test. hope this helps.