Math Problem Statement

|π‘₯ βˆ’ 2. 5| ≀ 0. 5

Solution

To solve the inequality ∣xβˆ’2.5βˆ£β‰€0.5|x - 2.5| \leq 0.5, we can proceed by breaking it down into two cases based on the absolute value definition.

The inequality ∣xβˆ’2.5βˆ£β‰€0.5|x - 2.5| \leq 0.5 means that the distance between xx and 2.5 is at most 0.5. Therefore, we can rewrite this as a compound inequality:

βˆ’0.5≀xβˆ’2.5≀0.5-0.5 \leq x - 2.5 \leq 0.5

Now, let's solve this inequality step-by-step:

  1. Add 2.5 to each part of the inequality:

    βˆ’0.5+2.5≀x≀0.5+2.5-0.5 + 2.5 \leq x \leq 0.5 + 2.5

  2. Simplify:

    2≀x≀32 \leq x \leq 3

So, the solution to the inequality ∣xβˆ’2.5βˆ£β‰€0.5|x - 2.5| \leq 0.5 is:

2≀x≀32 \leq x \leq 3

In interval notation, this can be written as:

x∈[2,3]x \in [2, 3]

Would you like more details on any step or have further questions?

Here are some related questions:

  1. How would you solve a similar inequality if it was ∣xβˆ’4∣<2|x - 4| < 2?
  2. Can you solve ∣x+1∣β‰₯3|x + 1| \geq 3 and interpret its solution?
  3. How would the solution change if the inequality was ∣xβˆ’2.5∣<0.5|x - 2.5| < 0.5 instead of ≀\leq?
  4. How does the interval notation help in interpreting the solution set?
  5. How do absolute values affect inequalities and solutions in general?

Tip: When solving absolute value inequalities, remember that ∣Aβˆ£β‰€B|A| \leq B translates to βˆ’B≀A≀B-B \leq A \leq B.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

|A| ≀ B implies -B ≀ A ≀ B

Theorems

Properties of Absolute Value Inequalities

Suitable Grade Level

Grades 9-10