91Ó°ÊÓ

The system of inequality is$\left\{\begin{array}{l}x-y>-2\\ y≤3x+1\end{array}\right.$

To find the solution of inequality by graphing

Graph the line$x-y=-2$

It is a dashed line since it contains the inequality $>$.

And test the point $(0,0)$.

It is a solution to the given inequality, so shade the region that contains the point$(0,0)$

Graph the line $y≤3x+1$

It is a solid line since it contains the inequality $≤$.

And test the point $(0,0)$.

It is a solution to the given inequality, so shade the region that contains the point $(0,0)$

The point where the boundary line intersect is not a solution since it is not a solution to the inequality $x-y>-2$.

The solution is all the points in the area shaded twice which appears as the darkest shaded region.

Choose $(0,0)$as a test point

Test for first inequality:

$x-y>-2$

$0>-2$is true.

Test for second inequality:

$y≤3x+1$

$0≤3\left(0\right)+1$

$0≤1$is true.

The region containing $(0,0)$is the solution to the system.