Math Problem Statement

Sketch the graph of the given inequality: |x + 1| ≥ 6

Solution

The inequality given is:

x+16|x + 1| \geq 6

Steps to solve:

  1. Break down the absolute value inequality: The expression x+16|x + 1| \geq 6 implies two cases:

    • x+16x + 1 \geq 6
    • x+16x + 1 \leq -6
  2. Solve each case:

    • Case 1: x+16    x5x + 1 \geq 6 \implies x \geq 5

    • Case 2: x+16    x7x + 1 \leq -6 \implies x \leq -7

  3. Combine the solutions: The inequality holds true for x5x \geq 5 or x7x \leq -7.

Graphing the solution:

  • Draw a number line with key points at x=7x = -7 and x=5x = 5.
  • Shade the region where x7x \leq -7 (i.e., all values to the left of 7-7) and x5x \geq 5 (i.e., all values to the right of 55).
  • Since the inequality is greater than or equal to, include the points x=7x = -7 and x=5x = 5 with solid circles at these points.

Would you like me to sketch this graph for you, or provide additional details?

Related Questions:

  1. What is the difference between strict and non-strict inequalities in graphing?
  2. How would the graph change if the inequality was x+1<6|x + 1| < 6?
  3. How can absolute value inequalities be solved using a graphical method?
  4. Can this inequality be solved using interval notation? If yes, how?
  5. What is the general form for solving absolute value inequalities?

Tip: When solving absolute value inequalities, always remember to consider both the positive and negative cases of the expression inside the absolute value.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

|x + a| ≥ b implies two cases: x + a ≥ b or x + a ≤ -b

Theorems

Absolute Value Inequality Theorem

Suitable Grade Level

Grades 8-10