Question

Which sets of ordered pairs represent functions?

Answer 1

The ordered pair in roaster form {(2,8), (3, 12), (4, 16), (5, 20)} is a function.

What is the domain and range of a function?

Suppose we have an ordered pair (x, y) then the domain of the function is the set of values of x and the range is the set of values of y for which x  is defined.

We know a function can be many one which means different inputs leads to same output but one to many is not a function as same input can not lead to different outputs.

{(2,8), (3, 12), (4, 16), (5, 20)} is a function as each different input leads to a different output.

learn more about functions and sets here :

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