In solving a two-order linear inequality, say
and
We graph the corresponding linear equations;
Each of the two equations divides the cartesian plane into half-planes.
By testing for points, we identify the half-plane that satisfies each inequality.
The intersection of the two half-planes gives us a set of points that satisfies the two inequalities simultaneously.
Therefore the solution to the two-order inequality is the intersection of two half-planes.
The correct answer is option C