Math Problem Statement

|x - 9| ≤ 2

Solution

The inequality displayed in the image is:

x92|x - 9| \leq 2

This is an absolute value inequality, which means we need to break it down into two separate inequalities, removing the absolute value. The rule for absolute values is:

abimpliesbab|a| \leq b \quad \text{implies} \quad -b \leq a \leq b

Using this rule on the given inequality:

2x92-2 \leq x - 9 \leq 2

Step-by-step Solution:

  1. Add 9 to all parts of the inequality to isolate xx: 2+9x9+92+9-2 + 9 \leq x - 9 + 9 \leq 2 + 9 Simplifying the inequality: 7x117 \leq x \leq 11

Final Answer:

x[7,11]x \in [7, 11]

This means that xx can be any value between 7 and 11, inclusive.

Would you like more details or have any questions on this solution?

Here are 5 related questions:

  1. How do we handle absolute value inequalities with "greater than" signs?
  2. What happens if the inequality is strict, i.e., x9<2|x - 9| < 2?
  3. Can you solve absolute value inequalities that result in no solutions?
  4. How do absolute value inequalities relate to intervals on a number line?
  5. What would the solution look like if the inequality were x92|x - 9| \geq 2?

Tip: Always remember to check if the inequality symbol is strict or not, as it determines whether you include endpoints in your solution!

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

|a| ≤ b implies -b ≤ a ≤ b

Theorems

Absolute Value Inequality Theorem

Suitable Grade Level

Grades 8-10