Linear Inequalities Rules Solve like equations, BUT flip the sign when multiplying/dividing by a negative Graphing: use a dashed line for < or >, solid line for ≤ or ≥ Shade the region that satisfies the inequality Compound Inequalities "AND" = intersection (both must be true) "OR" = union (at least one must be true) SAT Applications Word problems with constraints (budget, capacity, etc.) System of inequalities — find the feasible region Identify which point satisfies all inequalities