Posted by Maria1 on Saturday, May 5, 2012 at 9:39am.
Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10
k=variation constant
y=equation of variation
Still do not understand..please..

Algebra  Steve, Saturday, May 5, 2012 at 10:33am
If y varies directly as x, it means that
y = kx
where k is called the variation constant. That is, y is always some multiple of x. It varies "directly".
So, we want to find k. To do that, we need to know both x and y. Luckily, they have said that y=60 when x=10. Plug them into the equation:
60 = k*10
k=6
So, now we know that y=6x

Algebra  Alexis2, Saturday, May 5, 2012 at 5:06pm
Aha...thank you..
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