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October 30, 2014

October 30, 2014

Posted by **Linda** on Monday, August 29, 2011 at 10:36pm.

The coordinates are: (0,-4), (0,4), (2,-3), (2,3). (4,-1)

(4,1)

After I graphed it I found that two of the point were on the y-axis so does that mean it is not a function? I might be getting it backwards though. If someone could just clear that up for me that would be great!

- Algebra -
**MathMate**, Monday, August 29, 2011 at 11:01pmYou have made a correct conclusion.

When two points are on the y-axis (also at x=2 and x=4), that means that the relations does not pass the vertical line test and it is therefore not a function.

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