Question

The range of the relation below is

x y
-1 10
2 10
5 4
0 3

Answer 1

Range = {3, 4, 10}

Answer 2

and what about this one?

Which of the following does not represent a function?
Answer

x 4 5 6 8 10
y 4 -4 12 -8 6

x -10 1 3 8 10
y -2 2 7 8 10

x 5 10 10 12 18
y 1 4 22 5 4

x -12 -5 11 14 17
y -5 -2 -2 8 34