Math Problem Statement

Solve the inequality |x + 2| < 2 and identify the graph of its solution.

Solution

The problem is asking you to solve the inequality x+2<2|x + 2| < 2 and identify the correct graph and solution.

Step 1: Solve the absolute value inequality

To solve x+2<2|x + 2| < 2, you can rewrite it as a compound inequality without the absolute value:

2<x+2<2-2 < x + 2 < 2

Step 2: Solve for xx

Now subtract 2 from all parts of the inequality:

22<x+22<22-2 - 2 < x + 2 - 2 < 2 - 2

This simplifies to:

4<x<0-4 < x < 0

So the solution to the inequality is xx between 4-4 and 00, not including 4-4 or 00.

Step 3: Identify the correct graph

From the given options, the correct graph is the one that shows the range 4<x<0-4 < x < 0, with open circles at 4-4 and 00 to indicate that these points are not included. This corresponds to Option D.

Final Answer:

The correct answer is D: Solution: x>4x > -4 and x<0x < 0.

Do you want further details or have any questions? Here are 5 related questions to think about:

  1. What is the difference between strict and non-strict inequalities?
  2. How would the solution change if the inequality were x+22|x + 2| \leq 2?
  3. How do you graph an inequality on a number line when dealing with absolute values?
  4. What happens if the inequality has a "greater than" sign instead of a "less than" sign?
  5. How would the solution change if we had x+2>2|x + 2| > 2?

Tip: Always remember to check the boundaries carefully when solving absolute value inequalities!

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Math Problem Analysis

Mathematical Concepts

Absolute Value
Inequalities
Graphing on Number Lines

Formulas

|x + a| < b ⇔ -b < x + a < b

Theorems

Absolute Value Inequality Theorem

Suitable Grade Level

Grades 8-10