Math Problem Statement

Graph the solution to the inequality |3v + 12| > 3 on the number line.

Solution

The inequality given is:

3v+12>3|3v + 12| > 3

To solve this inequality, we need to break it down into two cases since it involves absolute value:

Case 1: 3v+12>33v + 12 > 3

Solve for vv: 3v+12>33v + 12 > 3 Subtract 12 from both sides: 3v>3123v > 3 - 12 3v>93v > -9 Now, divide by 3: v>3v > -3

Case 2: (3v+12)>3-(3v + 12) > 3

This is equivalent to: 3v12>3-3v - 12 > 3 Add 12 to both sides: 3v>3+12-3v > 3 + 12 3v>15-3v > 15 Now, divide by -3 (remember to flip the inequality sign): v<5v < -5

Combined solution:

The solution is: v>3orv<5v > -3 \quad \text{or} \quad v < -5

This means that the inequality holds for vv in the intervals (,5)(3,)(-\infty, -5) \cup (-3, \infty).

Graphing the solution:

  • Draw a number line.
  • There will be open circles at v=5v = -5 and v=3v = -3 since the inequality is strict (does not include equality).
  • Shade the region to the left of v=5v = -5 (for v<5v < -5) and the region to the right of v=3v = -3 (for v>3v > -3).

Would you like further details on how to graph this, or do you have any questions?

Here are five related questions you might want to explore:

  1. What is the difference between a strict and non-strict inequality in absolute value problems?
  2. How do you solve absolute value inequalities with "less than" instead of "greater than"?
  3. How do you represent solutions to inequalities on a number line?
  4. Can you solve inequalities involving absolute values of quadratic expressions?
  5. How does the solution change when the inequality is \leq instead of >>?

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

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

|a| > b implies a > b or a < -b

Theorems

Properties of Absolute Value

Suitable Grade Level

Grades 9-11