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Graph the compound inequality on the number line. \[ x \leq-7 \text { or } x \geq-3 \]

Ask by Gross Sandoval. in the United States
Jan 26,2025

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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.

Solution

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 \( x \geq -3 \).

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To graph the compound inequality \( x \leq -7 \) or \( x \geq -3 \), start by placing a closed circle on -7 to indicate that -7 is included in the solution for the first part of the inequality. Then, shade the line to the left of -7. For the second part, place a closed circle on -3 and shade to the right of -3. Because this is an "or" situation, the graph will show two separate shaded areas: one extending to the left from -7 and the other extending to the right from -3. Remember, inequalities with "or" often highlight that any number within either condition is a part of the solution set, so you might find values like -8 (from the first inequality) or 0 (from the second inequality) are perfectly acceptable!

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