the equation of the dotted line is y = 2x
so purple shade above this line is y > 2x
and the continuous line has equation y = -1/2x -4 or 2y = -x - 8
so the pink shade below this line has equation 2y <= -x - 8
or x + 2y <= -8
the combined colours are represented by these 2 equations
so answer is the first choice