Pregunta
Graph each inequality and then give interval notation. (entry tip: use two o's as in octopus for infinity: 00 for \( \infty \) and -00 for \( -\infty \) ) \( x>-4 \)
Ask by Edwards Wang. in the United States
Jan 24,2025
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The solution to \( x > -4 \) is all numbers greater than -4. In interval notation, this is written as \((-4, 00)\).
Solución
Sure! Let's graph the inequality \( x > -4 \) and express the solution in interval notation.
### Graph of \( x > -4 \):
```
<-------------------●===================>
-4
```
- **Explanation:**
- **● (Open Circle) at -4:** Indicates that -4 is **not** included in the solution (since the inequality is strictly greater than).
- **Arrow (===================>) to the right:** Represents all numbers greater than -4.
### Interval Notation:
\[
(-4,00)
\]
- **Explanation:**
- **\( -4 \):** Starting point (not included, hence the parenthesis).
- **\( 00 \):** Represents positive infinity, indicating that the solution extends indefinitely to the right.
### Summary
- **Graph:** An open circle at -4 with shading extending to the right.
- **Interval Notation:** \((-4,00)\)
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To graph the inequality \( x > -4 \), start by drawing a number line. Place an open circle at -4 to indicate that -4 is not included in the solution set. Shade the line to the right of -4 to show that all numbers greater than -4 are part of the solution. In interval notation, this inequality is expressed as \( (-4, 00) \).
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