1. anonymous

We usually are asked if two functions are inverses, or find the inverse. Is there more to this question?

2. anonymous

No...

3. anonymous

Have you been working with functions being inversely proportional?

4. anonymous

Um I don't think so.... we've been working with inverse variations.

5. anonymous

ok, that is what I needed. When a function varies inversely, it can be written as $y = {k \over x}$ If we solve this function for y, we get $2x+4y=6$$4y=-2x+6$$y = {-2 \over 4}x+{6 \over 4}$ which isn't in the same form as y = k/x so this function is not an example if inverse variation. OK?

6. anonymous

Oh thanks so much!