Mathematics - Straight Lines Question with Solution | TestHub

A system of lines is given as $y=m_{i}x+c_i$, where $m_i$ can take any value out of $0,1,-1$ and when $m_i$ is positive then $c_i$ can be 1 or -1; when $m_i$ equals $0,c_i$ can be 0 or 1 and when $m_i$ equals $-1,c_i$ can take 0 or 2 . Then the area enclosed by all these straight lines is