Algebra questions need help

label Algebra
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Apr 26th, 2015

We are looking at the x values.  In order to be a function, these cannot repeat. Relation one is a function.  Relation 2 is also a function. Relation 3 is not a function because the domain values each occur more than once.  Relation 4 is not a function because d has two outputs.


Also, sorry about before.  I cannot seem to modify these posts after they are submitted.  I am also not able to post a correction, so I just wanted to apologize. 

Apr 26th, 2015

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Apr 26th, 2015
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Apr 26th, 2015
Jun 29th, 2017
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