Posted by ~{HAPPY FACE!!}~ on .
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,
What do you think? We will be happy to critique your thinking.
What is a function? 
Math 
~{HAPPY FACE!!}~,
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,
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!!}~,
Thank you for your explanation.