SOLUTION: Is (1,3) (5,4) (1,7) (9,4) a function? I don't understnad how to do them.

Algebra ->  Functions -> SOLUTION: Is (1,3) (5,4) (1,7) (9,4) a function? I don't understnad how to do them.      Log On


   

Question 369469: Is (1,3) (5,4) (1,7) (9,4) a function? I don't understnad how to do them.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A function is a relation that gives a unique y value for each x value.
In your case you have (1,3) and (1,7), so for x=1 you don't have one unique value, you have 2 values.
So this relation is not a function.