Math Problem Statement

Solve for b and graph the solution: 3 > |b - 5|.

Solution

We are given the inequality 3>b53 > |b - 5|.

Step-by-step solution:

  1. Definition of absolute value inequality: For any x<c|x| < c, where c>0c > 0, this means: c<x<c-c < x < c So in this case, we can split the inequality 3>b53 > |b - 5| into two parts: 3<b5<3-3 < b - 5 < 3

  2. Solving for bb:

    • First, solve the left inequality: 3<b5-3 < b - 5 Add 5 to both sides: 2<b2 < b

    • Now, solve the right inequality: b5<3b - 5 < 3 Add 5 to both sides: b<8b < 8

  3. Combined inequality: Now, combining both results, we get: 2<b<82 < b < 8 So, the solution is b(2,8)b \in (2, 8).

Graphing the solution:

  • The solution represents an open interval between 2 and 8. On a number line:
    • Open circles at b=2b = 2 and b=8b = 8 (since these are not included in the solution).
    • A line segment between 2 and 8.

Would you like me to add further details or explanations on this solution?

Five related questions:

  1. How do we handle inequalities involving absolute values?
  2. What are the different methods to solve absolute value inequalities?
  3. How would the solution change if the inequality was 3b53 \geq |b - 5|?
  4. Can you apply this technique to solve other inequalities, such as b+7<10|b + 7| < 10?
  5. How would we graph the solution if the inequality involved \leq or \geq?

Tip:

When solving absolute value inequalities, always split them into two cases—one positive and one negative—and solve each case separately.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

For any |x| < c, where c > 0, the inequality can be rewritten as -c < x < c.
3 > |b - 5| rewritten as -3 < b - 5 < 3

Theorems

Properties of absolute value inequalities
Inequality manipulation and solving

Suitable Grade Level

Grades 8-10