Math Problem Statement
Solve the inequality for x and identify the graph of its solution: |x + 1| > 2
Solution
Let's solve the inequality .
Step 1: Break down the absolute value inequality
The expression can be rewritten as two separate inequalities:
Step 2: Solve the two inequalities
-
- Subtract 1 from both sides:
-
- Subtract 1 from both sides:
Step 3: Combine the results
The solution is or . This is a disjunction (union), so the solution includes values where either or .
Step 4: Identify the correct graph and solution
Looking at the provided options:
- Option B: "Solution: or " correctly matches the solution from our work. The graph in Option B shows open circles at and , with arrows extending to the left for and to the right for , which is correct.
Thus, the correct answer is Option B.
Do you need further details or have any other questions?
Related Questions:
- How do you solve inequalities involving absolute values?
- What are the rules for solving compound inequalities?
- How do you graph inequalities on a number line?
- What is the difference between "and" and "or" in compound inequalities?
- How does an absolute value inequality differ from a regular inequality?
Tip:
When solving absolute value inequalities, always split them into two cases—one for the positive scenario and one for the negative scenario.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Absolute Value
Inequalities
Algebra
Formulas
|x + 1| > 2 implies two inequalities: x + 1 > 2 and x + 1 < -2
Theorems
Properties of absolute values
Basic rules for inequalities
Suitable Grade Level
Grades 8-10