If y Varies invarsely as x, aand y = 6, what is K, the variation constant? |
Request for Question Clarification by
mathtalk-ga
on
10 Nov 2004 20:41 PST
You need another piece of information to determine K.
When y = 6, do you know what x is? Or some other fact you've not shared already?
regards, mathtalk-ga
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Clarification of Question by
jcjoey3652-ga
on
11 Nov 2004 15:50 PST
not shure. this is a question asked by my cousin. that is how it was
asked in his text book. i do believe the section review was mulitlpe
choice. i will get the choices and post hem here if it will help. also
if you could giv a explanation of how you came to the conclution i
will give you a tip if google will let me.
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Request for Question Clarification by
mathtalk-ga
on
11 Nov 2004 17:50 PST
To say that y varies inversely as x with "variation constant" K means:
y = K/x
(or equivalently, x*y = K)
So you would need both a value of y and a value of x to determine K.
It's basically that simple.
Perhaps there was some additional information given above the
particular problem that your cousin asked about, sort of "use this
assumption" for the section of multiple choice questions that
followed.
best wishes, mathtalk-ga
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Clarification of Question by
jcjoey3652-ga
on
14 Nov 2004 12:44 PST
sorry about the mixup you are right.
my cousin writes like a doctor. so i got his book and now im reading
it directly form the book.
If y varies inversely a x, and y = 12 when x = 6, what is K the variation constant?
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Request for Question Clarification by
mathtalk-ga
on
14 Nov 2004 14:54 PST
So, if in general y = K/x, and in particular if y = 12 when x = 6, do
you see what the value of K must be?
regards, mathtalk-ga
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Clarification of Question by
jcjoey3652-ga
on
14 Nov 2004 16:10 PST
72?
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Clarification of Question by
jcjoey3652-ga
on
15 Nov 2004 05:04 PST
you know what now that i actually looked at this book i feel kinda stupid.
this was alot easier then it looked. next time ill ask for the book
first before going strait to google. but hey thanks for the help just
a little slow lately i guess.
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Request for Question Clarification by
mathtalk-ga
on
15 Nov 2004 07:57 PST
No problem. Mathematics is all about a subject that requires
instruction from someone who's been there.
When someone shows you how to do it, that's the first time you learn
it. When you put the pieces together for yourself, that's the second
time you learn it. When you explain it to someone else, that's the
third and final lesson.
regards, mathtalk-ga
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