Math Problem Statement

Which inequality is the union of x - 2 >= 2x + 10?

Solution

The problem in the image asks: "Which inequality is the union of x22x+10x - 2 \geq 2x + 10?"

To solve this, let's start by solving the inequality:

  1. Start with the given inequality: x22x+10x - 2 \geq 2x + 10

  2. Subtract 2x2x from both sides: x2x210x - 2x - 2 \geq 10 x210-x - 2 \geq 10

  3. Add 2 to both sides: x12-x \geq 12

  4. Multiply both sides by -1 (which reverses the inequality sign): x12x \leq -12

The inequality x12x \leq -12 is the solution.

For the union, typically, you combine solutions from multiple inequalities, but since only one inequality is provided, the union would just be this single inequality.

If you have more questions or need further details, feel free to ask!

Related Questions:

  1. What happens to the inequality sign when you multiply both sides by a negative number?
  2. How do you solve a compound inequality involving "and" or "or"?
  3. What does the union of two inequalities represent graphically?
  4. How would the solution change if the inequality were strict (e.g., x2>2x+10x - 2 > 2x + 10)?
  5. How can you check if a particular value satisfies an inequality?

Tip: Always remember to reverse the inequality sign when multiplying or dividing by a negative number!

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Math Problem Analysis

Mathematical Concepts

Inequalities
Algebra

Formulas

Solving linear inequalities
Multiplication by negative numbers flips inequality sign

Theorems

Properties of inequalities

Suitable Grade Level

Grades 7-9