need help on relation and function

[Guest]

the problem iz that "findthe domain and range of each relation.iz the relation a function. #4
{(6,-6)},(7,-7),(3,-3),(4,-4)}

 

[stapel]

Hint: What are the definitions of "domain" and "range"?

Eliz.

 

[zerodegrees]

bonus hint: it may have something to do with the order of the pair.

 

[lsosa02]

Hint : the domain is the first number , the range is the second number in the ordered pair

 

[JOSE JAIME-RODRIGUEZ]

First make a list of the domains and functions like this:

[/u]DOMAINFUNCTION
........6-------------------->-6
........7-------------------->-7
........3-------------------->-3
........4-------------------->-4

*now you can find out if the relation is a function..

 

[pka]

A relation is a function if, No two pairs have the same first term.