Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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**Question: Which values of \( x \) make the inequality true?**

Given inequality:
\[ 2(x - 4) - 9x \leq -4x + 13 \]

Options:
1. \( \{ x : x \geq 1 \} \)
2. \( \{ x : x \geq -7 \} \)
3. \( \{ x : x \leq 1 \} \)
4. \( \{ x : x \leq -7 \} \)

---

To solve the inequality, follow these steps:

1. Distribute the 2 on the left side of the inequality:
   \[
   2(x - 4) - 9x \leq -4x + 13 \implies 2x - 8 - 9x \leq -4x + 13
   \]

2. Combine like terms on the left side:
   \[
   -7x - 8 \leq -4x + 13
   \]

3. Add \(4x\) to both sides to get all \(x\) terms on one side:
   \[
   -7x + 4x - 8 \leq 13 \implies -3x - 8 \leq 13
   \]

4. Add 8 to both sides:
   \[
   -3x \leq 21
   \]

5. Divide by -3 and reverse the inequality sign:
   \[
   x \geq -7
   \]

Thus, the correct set of values for \( x \) that satisfies the inequality is 
\[ \{ x : x \geq -7 \} \]
which corresponds to the second option.

---
**Answer:** \( \{ x : x \geq -7 \} \)
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Transcribed Image Text:**Question: Which values of \( x \) make the inequality true?** Given inequality: \[ 2(x - 4) - 9x \leq -4x + 13 \] Options: 1. \( \{ x : x \geq 1 \} \) 2. \( \{ x : x \geq -7 \} \) 3. \( \{ x : x \leq 1 \} \) 4. \( \{ x : x \leq -7 \} \) --- To solve the inequality, follow these steps: 1. Distribute the 2 on the left side of the inequality: \[ 2(x - 4) - 9x \leq -4x + 13 \implies 2x - 8 - 9x \leq -4x + 13 \] 2. Combine like terms on the left side: \[ -7x - 8 \leq -4x + 13 \] 3. Add \(4x\) to both sides to get all \(x\) terms on one side: \[ -7x + 4x - 8 \leq 13 \implies -3x - 8 \leq 13 \] 4. Add 8 to both sides: \[ -3x \leq 21 \] 5. Divide by -3 and reverse the inequality sign: \[ x \geq -7 \] Thus, the correct set of values for \( x \) that satisfies the inequality is \[ \{ x : x \geq -7 \} \] which corresponds to the second option. --- **Answer:** \( \{ x : x \geq -7 \} \)
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