Algebra-1

Let's review how to solve systems of linear inequalities by graphing, to solve systems of linear inequalities by graphing, you can follow these steps:

Graph each inequality on the same coordinate plane:
First, rewrite the inequality in slope-intercept form (y = mx + b) if necessary.

Determine if the line should be solid or dashed:
Use a solid line for inequalities with ≤ or ≥ since points on the line are included in the solution.
Use a dashed line for inequalities with <or > since points on the line are not included.
And plot the line for each inequality.

Shade the correct side of each line:
For inequalities in the form y > or y ≥, shade above the line.
For inequalities in the form y ＜or y ≤, shade below the line.

To determine the correct side, you can also test a point (like the origin (0, 0)) not on the line. If ...