Symbol
Problem
$2$ $f\left(x\right)= \begin{cases} 2x+1 \\ x\geq 1 \\ \dfrac {1} {2}x-3x<1 \end{cases}$ Function? $ye5OrNO$ $f\left(-2\right)=$ $f\left(6\right)=$ $f\left(1\right)=$