Question

The range of the following relation: R {(3, -2), (1, 2), (-1, -4), (-1, 2)} is

{-1, 1, 3}

{-1, -1, 1, 3}

{-4, -2, 2, 2}

{-4, -2, 2}

Answer 1

the range is all the \(y\) values for the pairs \((x,y)\).

Answer 2

and we dont repeat elements in a set