## phury Group Title suppose that y varies inversely with x, and y = 6 when x = 8. what is an equation for the inverse variation? one year ago one year ago

1. skullpatrol Group Title

Any ideas?

2. ParthKohli Group Title

Remember that the equation for inverse variation is $$k = xy$$.

3. AravindG Group Title

$\large y \alpha \dfrac{1}{x}$

4. ParthKohli Group Title

Or, equivalently, it can be expressed as$y = \dfrac{k}{x}$

5. ParthKohli Group Title

@AravindG use \propto instead of \alpha ;-)

6. skullpatrol Group Title

Do you know these general forms of an inverse relation?

7. ParthKohli Group Title

$k = yx$Here, we can plug the values $$y = 6$$ and $$x = 8$$. What do you think?

8. phury Group Title

woah o.o i was doing something else. K=6(8)

9. ParthKohli Group Title

I'd give you an example. There's an inverse relation and when $$y = 4$$, $$x = 6$$. The general equation would be $$k = yx$$. find out $$k$$, the product of all $$y$$s and the corresponding $$x$$'s.

10. ParthKohli Group Title

So the general equation for my example is $$k = 24$$

11. ParthKohli Group Title

Use my example?

12. phury Group Title

i wish i had time to learnt his but i dont. 20 questions to go and i have to turn this in at @ 2. its 1:22 now -.-

13. ParthKohli Group Title

It's very easy. What's the product of the $$x$$ and $$y$$ you're given?

14. phury Group Title

y = 48/x ?

15. ParthKohli Group Title

Yay! That's it! :-)

16. phury Group Title

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