Math Problem Statement

x−9∣≥2

Solution

The given inequality is x92|x - 9| \geq 2.

To solve an absolute value inequality of the form AB|A| \geq B, we consider two cases:

Case 1: x92x - 9 \geq 2

x2+9x \geq 2 + 9 x11x \geq 11

Case 2: (x9)2-(x - 9) \geq 2 or x92x - 9 \leq -2

x92x \leq 9 - 2 x7x \leq 7

Thus, the solution is the union of the two cases: x7orx11x \leq 7 \quad \text{or} \quad x \geq 11

In interval notation, the solution is: (,7][11,)(-\infty, 7] \cup [11, \infty)

Would you like more details or have any questions?

Here are 5 related questions to expand on this topic:

  1. How would the solution change if the inequality was x9>2|x - 9| > 2?
  2. What would the solution be for x92|x - 9| \leq 2?
  3. Can you graph the solution set on a number line?
  4. How do we solve absolute value equations, such as x9=2|x - 9| = 2?
  5. How does the inequality change if it's x+92|x + 9| \geq 2?

Tip: Always remember that absolute value inequalities result in two cases, one for the positive and one for the negative.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

|x - a| ≥ b => x - a ≥ b or x - a ≤ -b

Theorems

Absolute Value Inequality Theorem

Suitable Grade Level

Grades 8-10