Question

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

Table A
x 3 2 1
y 1 0 0
Table B
x 3 5 4
y −2 1 1


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

For a relation to be a function there should be no value of x which correspond to more that 1 value of y

So x 1 1 2
y 2 3 4

is not a function because of the (1,2) and ( 1,3)

Answer 2

you can however have ordered pairs like (3,1) , 4,1) - that is the same value of y fro more than one value of x.

Answer 3

so what do you think about tables 1 and 2?

Answer 4

no clue