Relations, Functions, Domain and Range

the domain

a relation

a function

the range

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All real numbers

x > 3

x = 4

x ≥ 3

All real numbers

y ≥ 3

y > 3

3 ≤ y ≤ 8

{10, 19, 26}

{-3, 0, 4}

{-3, 0, 4, 10, 19, 26}

{0, 16}

{1, 2, 3}

{2, 3}

{0, 2, 4}

{1, 3}

the set of all x-values

the set of all y-values

{1, 2, 4}

{0, 1, 2, 3}

{0, 3}

{1, 4}

<(0, 1), (1, 2),(3, 4)>

<(1, 0), (2, 1), (2, 2), (4, 3)>

<(0, 1), (1, 2), (2, 2), (3, 4)>

<(1, 0), (2, 1), (4, 3)>

{12}

{6, 18}

{3, 9, 15, 16}

{13}