$\displaystyle m<- \frac{2}{3}$\displaystyle m<- \frac{2}{3}

$\displaystyle - \frac{2}{3}<m< \frac{1}{3}$ \displaystyle - \frac{2}{3}<m< \frac{1}{3}

$\displaystyle \frac{1}{3}<m<1$\displaystyle \frac{1}{3}<m<1

$m>1$m>1