Question

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

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

(x,y)
normally y is output or range
so look at second numbers, ignore repeats

R=(2,1,3,6)