Question

9. {(-2,-1), (0, 3), (5, 4), (-2,3)}10. {(-1,5), (0, 3), (2, 3), (3, -1)}Is the relation function ?

Answer 1

For the relation to be a function each input must give exactly one output.

(9)

For input of 0, the output is 3 and same output 3 is obtained for input of -2. So same output at different input value so the relation is not a function.

(10)

In relation, output 3 is obtained at two different input values. Output 3 is at input value of 0 and 2. So relation is not a function.