# What are the local extrema, if any, of f (x) =x/(-12x+2?

Jun 21, 2018

$f ' \left(x\right) = \frac{2}{- 12 x + 2} ^ 2 \ne 0$ so no extrema
$f ' \left(x\right) = \frac{- 12 x + 2 - x \left(- 12\right)}{- 12 x + 2} ^ 2$
$f ' \left(x\right) = \frac{2}{- 12 x + 2} ^ 2$