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Mathematics 18 Online
OpenStudy (anonymous):

The relation {(4, 10), (1, 9), (5, 10), (1, 10)} is a function?

OpenStudy (anonymous):

no, becouse is not one to one relation, but one to many

OpenStudy (anonymous):

(1, 9), (1, 10), u see, 1 has 2 images

OpenStudy (precal):

you can also, plot the points and see if it passes the vertical line test

OpenStudy (precal):

|dw:1340142536527:dw|

OpenStudy (precal):

|dw:1340142562960:dw| see how it fails the vertical line test

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