10. Give the range of the set (-2, 1), (-7, 6), (-2, 2), (8,-7) and tell if the relation is a function.

Given:
(-2, 1), (-7, 6), (-2, 2), (8,-7).
Required:
To find the range of the given set.
Explanation:
The range of a function is the set of its possible output values.
Here the range is
{-7,1,2,6} and it is not a function.
Here the one domain mapped to two range.
Final Answer:
{-7,1,2,6} and it is not a function.