If    the least and the highest value of  are Option 1) 0 and 81 Option 2) 9 and 81 Option 3) 36 and 81 Option 4) None of these

As we learnt in

Range -

The range of the relation R is the set of all second elements of the ordered pairs in a relation R.

- wherein

eg. R={(a,b),(c,d)}. Then Range is {b,d}

Thus maximum value of

Option 1)

0 and 81

Correct

Option 2)

9 and 81

Incorrect

Option 3)

36 and 81

Incorrect

Option 4)

None of these

Incorrect