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

I am having trouble trying to figure out how to work this problem:

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 7:57pm
i 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 8:06pm
By 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

## Answer This Question

## Related Questions

- math - I'm just having trouble trying to see the independent and dependant ...
- algebra - Determine whether the following relation represents a function. If the...
- Math - How do you know which relation is NOT a function? (How do you determine ...
- math - Which of the following best describes the equation below? y= -7x + 6 ...
- Pre-Algebra - Okay so I have no clue how to determine if a relation is a ...
- Algebra - Find the range of the relation [(1, -4), (2,5), (3,5)]. Then determine...
- Need help asap - I need help! Reasoning: Can a function have an infinite number ...
- Algebra 1 (Reiny or Kuai) - Give the domain and range values of each relation. ...
- Discrete Math - Which of these relations on {0, 1, 2, 3} are equivalence ...
- Math - Let R1 be a binary relation on the set of integers defined as follows: R1...

More Related Questions