Question 1173791:  which of the following relations does not represent a function?
 
A) {(-3,1), (2,1),(4,5)} 
B) {(-4,1), (-4,3),(2,-3)} 
C) {(0,1), (1,1), (2,1)} 
D) {( -1,1), (0,2), (1,-1) 
 Answer by ewatrrr(24785)      (Show Source): 
You can  put this solution on YOUR website!   
Hi, 
A) {(-3,1), (2,1),(4,5)} 
B) {(-4,1), (-4,3),(2,-3)} 
C) {(0,1), (1,1), (2,1)} 
D) {( -1,1), (0,2), (1,-1) 
Function is special relationship where each input(x) has a single output(y). 
Note B) 
x	y 
-4	1 
-4	3 
 2     -3 
 -4 has two different  y-values. 
 B) does not represent a function
 
 
  
  | 
 
  
 
 |   
 
 |