Graph of Identity Function

Q.

Which of the following statements is/are correct about identity function?

1. It's an even function

2. its graph is symmetrical about opposite quadrants

3. Domain and range is both equal to R

4. it's an odd function

Q.

Which of the following statements is/are correct about identity function?

1. It's an even function

2. its graph is symmetrical about opposite quadrants

3. Domain and range is both equal to R

4. it's an odd function