Define a function as a set of ordered pairs

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Functions. Definition: A relation is any set of ordered pairs; such as 4, 1 , 2,3 , 0, 5 , 2,7 , 3, 9. If the value of the second coordinate, y, depends on the value of the first coordinate, x, then y is the dependent variable and x is the independent variable.

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Q. Define a function as a set of ordered pairs.

Q. What is the domain of function

g

defined by a set of ordered pairs as follows:

g = {(3, 2), (5, 9), (6, 9), (11, 0)}

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Q. Two sets are given as
Set

A = {1, 2, 3, 4, 99}

and
Set

B = {2, 3, 0, 1, 89}

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A

to set

B

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