Math Problem Statement

|x + 5| < 2

Solution

Let's solve the inequality given in the image step by step:

Inequality:

x+5<2|x + 5| < 2

Step 1: Break the absolute value inequality into two cases

We need to solve two inequalities because the absolute value x+5|x + 5| measures the distance from 0. For an inequality like A<B|A| < B, we break it into:

2<x+5<2-2 < x + 5 < 2

Step 2: Solve both inequalities

Left side:

2<x+5-2 < x + 5 Subtract 5 from both sides: 7<xx>7-7 < x \quad \Rightarrow \quad x > -7

Right side:

x+5<2x + 5 < 2 Subtract 5 from both sides: x<3x < -3

Step 3: Combine the two inequalities

We now have: 7<x<3-7 < x < -3

Step 4: Write the solution in interval notation

The solution set is all xx-values between 7-7 and 3-3, but not including the endpoints (since the inequality is strict). Therefore, the interval notation is:

(7,3)(-7, -3)

Step 5: Identify the correct graph

Looking at the graphs provided:

  • We need an open interval from 7-7 to 3-3, which excludes both 7-7 and 3-3.
  • The correct graph is option E, which highlights the interval (7,3)(-7, -3) with open circles at both ends.

Final Answer

  • Interval notation: (7,3)(-7, -3)
  • Correct graph: Option E

Do you have any questions or want further details?


Here are five related questions:

  1. What changes if the inequality was x+52|x + 5| \leq 2?
  2. How do we solve absolute value inequalities where the inequality is \geq or >>?
  3. How would you graph the solution for x1<3|x - 1| < 3?
  4. What happens if the absolute value inequality has no solutions (e.g., x+5<2|x + 5| < -2)?
  5. How do you solve compound inequalities involving and/or\text{and/or} conditions?

Tip: When solving absolute value inequalities, always check whether the interval needs open or closed endpoints based on the inequality sign.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities
Absolute Value

Formulas

|A| < B implies -B < A < B

Theorems

Properties of Absolute Value Inequalities

Suitable Grade Level

Grades 8-10