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

Domain = set of allowed inputs = set of allowed x values
Range = set of possible outputs = set of possible y values

Answer 2

each point is of the form (x,y)

Answer 3

so which one is it?

Answer 4

you're simply listing out the y values that show up