Question

The tables below show the values of y corresponding to different values of x:


Table A
x 3 3 2
y 1 0 0
Table B
x 3 5 5
y -2 2 -2


Which statement is true for the tables?
Both Table A and Table B represent functions.

Both Table A and Table B do not represent functions.

Table A does not represent a function, but Table B represents a function.

Table A represents a function, but Table B does not represent a function.

Answer 1

@dan815 Could you help me?

Answer 2

Neither table represents a function because in both you have an x value that goes to 2 different ys.

In the first table you have 3 going to both 1 and 0, this means its NOT a function.

In table 2 you have 5 going to both 2 and -2, this means it's NOT a function.

Answer 3

In a function, your x values can NOT go to more than 1 y.

BUT a y value CAN go to more than 1 x. So ys can be repeated, xs CANNOT

Answer 4

It also helps if you draw out this little thing: