Question

If ƒ = {(4, 2),(5, 1),(6, 2),(7, 3),(8, 6)}, then the range of ƒ is

Answer 1

(1,2,3,6)

Explanation:

If ƒ = {(4, 2),(5, 1),(6, 2),(7, 3),(8, 6)}, then the range of ƒ is

{(2, 4),(1, 5),(2, 6),(3, 7),(6, 8)}

{1, 2, 3, 6}

{4, 5, 6, 7, 8}

Odyssey

Answer 2

the range is the set of the second values in the ordered pairs:-

range of f is {1,2,3,6}

Note that repeated values ( in this case 2) are only written once.