Question

Is the following relation a function? xy 1 −2 1 −3 2 1 3 −2

Answer 1

It is not a function.

Answer 2

Answer:

The given relation is not a function.

Step-by-step explanation:

A relation is called a function if there exist a unique value of y for each value of x.

The given table is

x         y

1        -2

1        -3

2        1

3        -2

From this table it is clear that we have two values of y at x=1.

One value of y at x=1 is -2 and the second value of y at x=1 is -3.

Since the given relation has more than one value of y for x=1, therefore the given relation is not a function.