Question

What is the domain and range of {(-1, -2), (1, -2), (3,1)} ?

Answer 1

Given `(x,y) in { (-1,2), (1,-2), (3,1) }`
the domain is `( -1, 1, 3}` and
the range is `{-2, 1}`

Explanation:

The domain is the collection of valid values for `x`.

The range is the collection of valid values for `y`