Question

(02.01 LC)

Is the following relation a function?


x y
1 4
−1 −2
3 10
5 16
Yes
No

Yes or no?

Answer 1

Yes. You should add commas next time to make it easier to read.

Answer 2

Yes this is a function..

Explanation:

We have to see the inputs and outputs for the function.

Here x represents input and y represents output.

For a relation to be a function there should be no repition in domain or input of the function i.e. every element in domain should be unique.

The domain for given relation is:

{1,-1,3,5}

All the inputs are only once mapped to the output so this relation is a function ..