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 5
y -2 1 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

For the table of values to represent a function,
\(unique\) y-values MUST be there for any given x-value.

Answer 2

for ex-
if i ask you, whats the value of y, when x = 3, you should be able to tell it in a \(unique\) way

Answer 3

let me ask you the question, then u wil see it :)

In Table A : whats the value of y, when x = 3 ?

Answer 4

1

Answer 5

Yes,

one more last question :-

In Table B : whats the value of y, when x = \(5\) ?

Answer 6

1

Answer 7

look again, there is another value for y when x = 5

Answer 8

Table B

x 3 \(5\) \(5\)
y -2 \(1\) \(2\)

Answer 9

when x = 5, y can take two values : 1 or 2
so you cannot just answer the question in an \(unique\) way....

so Table B is NOT a function

Answer 10

If there is 2 values of y then it's not a function

Answer 11

Yes,
if there are 2 or more values of y, for the SAME x.. then its not a function.

Answer 12

That's what I meant. But table A is a function right?

Answer 13

Yes, Table A is good.
None of the x's have two y-values.