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OpenStudy (anonymous):
can someone help me with functions and relations
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OpenStudy (anonymous):
{(2,-5),(2,2),(-5,2),(-5,-5)} Is this a function?
OpenStudy (anonymous):
No it is not.
OpenStudy (anonymous):
If y has the same number two or more times, then it is not a function. It's only a function when all the numbers are different.
OpenStudy (anonymous):
ok thanks
OpenStudy (anonymous):
can some one help me with this?
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