Choose the correct words to fill in the blanks below. boundary solution set broken linear inequality solid 1. A in two variables is any expression that can be put in the form \( a x+b x<0 \), where the inequality symbol can be \( <,>, \leq \), or \( \geq \). 2. The \( \square \) 3. The \( \square \) for a linear inequality is a section of the coordinate plane. the inequality symbol with an equals sign and graphing the resulting equation. 4. Use a \( \square \) line for the boundary of a linear inequality if the original inequality symbol was \( \geq \) or \( \leq \). 5. Use a \( \square \) symbol was \( > \) or \( < \).

Let's fill in the blanks with the appropriate words based on the context of linear inequalities: 1. A **linear inequality** in two variables is any expression that can be put in the form \( ax + b < 0 \), where the inequality symbol can be \( <, >, \leq \), or \( \geq \). 2. The **solution set**. 3. The **boundary** for a linear inequality is a section of the coordinate plane. 4. Use a **solid** line for the boundary of a linear inequality if the original inequality symbol was \( \geq \) or \( \leq \). 5. Use a **broken** line for the boundary of a linear inequality if the original inequality symbol was \( > \) or \( < \). So the completed sentences are: 1. A **linear inequality** in two variables is any expression that can be put in the form \( ax + b < 0 \), where the inequality symbol can be \( <, >, \leq \), or \( \geq \). 2. The **solution set**. 3. The **boundary** for a linear inequality is a section of the coordinate plane. 4. Use a **solid** line for the boundary of a linear inequality if the original inequality symbol was \( \geq \) or \( \leq \). 5. Use a **broken** line for the boundary of a linear inequality if the original inequality symbol was \( > \) or \( < \).