# Math Help - variation

1. ## variation

y varies inversely as x and y= 0.5 when x=24

2. Originally Posted by armygirltiff
y varies inversely as x and y= 0.5 when x=24
What is your question or concern?

The only thing I can make out of this is that you want the function where y is an inverse of x and $f(24)=0.5$

Let $f(x)=\frac{a}{x}$

$0.5 = \frac{a}{24}$

$a = 12$

Therefore, our function is $f(x) = \frac{12}{x}$