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To graph the compound inequality \( x \leq -7 \) or \( x \geq -3 \) on a number line:
1. **Draw a number line** and mark the points \( -7 \) and \( -3 \).
2. **At \( -7 \)**, place a closed circle (since \( x \) can be equal to \( -7 \)) and shade to the left.
3. **At \( -3 \)**, place a closed circle (since \( x \) can be equal to \( -3 \)) and shade to the right.
4. **Combine both shaded regions** to represent all values less than or equal to \( -7 \) or greater than or equal to \( -3 \).
This graph shows all possible values of \( x \) that satisfy either inequality.
Solución
To graph the compound inequality \( x \leq -7 \) or \( x \geq -3 \) on a number line, we can follow these steps:
1. **Identify the critical points**: The critical points from the inequalities are \( -7 \) and \( -3 \).
2. **Graph the first inequality \( x \leq -7 \)**:
- This means that all values of \( x \) that are less than or equal to \( -7 \) are included.
- On the number line, we will place a closed circle at \( -7 \) (indicating that \( -7 \) is included) and shade to the left.
3. **Graph the second inequality \( x \geq -3 \)**:
- This means that all values of \( x \) that are greater than or equal to \( -3 \) are included.
- On the number line, we will place a closed circle at \( -3 \) (indicating that \( -3 \) is included) and shade to the right.
4. **Combine the graphs**:
- Since the compound inequality uses "or," we will combine both shaded regions. This means the graph will show all values to the left of \( -7 \) and all values to the right of \( -3 \).
### Final Representation:
- The number line will have a closed circle at \( -7 \) with shading to the left, and a closed circle at \( -3 \) with shading to the right.
This visually represents the solution to the compound inequality \( x \leq -7 \) or \( x \geq -3 \).
Revisado y aprobado por el equipo de tutoría de UpStudy
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