# Thread: increasing decreasing function with floor() investigate

1. ## increasing decreasing function with floor() investigate

Find where f(x) is increasing and find where it is decreasing
** the [] brackets in the power are meant to be the \floor function (i couldn't get it right in latex..)
Thanks for the help !
$
f(x)=(-1)^{[3x]}X+(-1)^{[2x]}X^2

$

2. will appreciate the help much.. help still needed...

3. Did you try to graph the function?

4. ## ya

Yes, I got a pretty crazy graph...