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March 28, 2015

March 28, 2015

Posted by **NIki** on Tuesday, March 2, 2010 at 7:31pm.

Determine if each relation is a function.

1. Relation: (-2,2),(3,2,),(4,-1),(5,-2)

How do i do this???????

- 9th grade -
**Anonymous**, Tuesday, March 2, 2010 at 7:57pmi am having the same trouble too. i think if the x points are different, the its a function. but if not, then its not a function.

seeking for help also :)

- 9th grade -
**Reiny**, Tuesday, March 2, 2010 at 8:06pmBy definition, it is a function.

Have you learned about the Vertical Line Test?

Here is a short video that explains it.

Too bad that the guy is sort of dry in his explanation.

http://www.youtube.com/watch?v=-xvD-n4FOJQ

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