Question

Is the relation a function? Why?

Answer 1

1

Explanation:

because you cannot get two outputs from a single input in a function to put it simply

if you put 11 or any other number in a function all you can get is only one output either 5 or 8 or any number besides them.....

Answer 2

No! 11, the input, has two outputs which makes it not a function! :)