Posted by **~{HAPPY FACE!!}~** on Thursday, February 12, 2009 at 6:41pm.

How long one can hold their breath can be calculated using the formula y=1.4g where y is the amount of time one can hold their breath in seconds and g is the size of their lungs in cubic centimeters.

Is this a relation or a function? Explain why.

Please Help!!

Thanks!!

- Math -
**bobpursley**, Thursday, February 12, 2009 at 6:42pm
What do you think? We will be happy to critique your thinking.

What is a function?

- Math -
**~{HAPPY FACE!!}~**, Thursday, February 12, 2009 at 6:47pm
A function is a relation between two sets in which one element of the second set is assigned to each element of the first set.

- Math -
**Damon**, Thursday, February 12, 2009 at 7:17pm
so there is one and only one value of y for every value of g.

therefore y is a function of g

- Math -
**~{HAPPY FACE!!}~**, Thursday, February 12, 2009 at 8:14pm
Thank you for your explanation.

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