Math Problem Statement

Solve for xx and graph the solution on the number line below. If possible, resolve your answer to a single inequality. In case of no solution (\varnothing∅), leave the number line blank. minus, 2, x, minus, 10, is greater than or equal to, minus, 22, and, minus, 2, x, minus, 10, is greater than, minus, 34 −2x−10≥−22and −2x−10>−34

Solution

We are given two inequalities to solve:

  1. 2x1022-2x - 10 \geq -22
  2. 2x10>34-2x - 10 > -34

Step 1: Solve the first inequality 2x1022-2x - 10 \geq -22

Add 10 to both sides:

2x22+10-2x \geq -22 + 10 2x12-2x \geq -12

Now, divide both sides by 2-2. Remember to flip the inequality sign when dividing by a negative number:

x122x \leq \frac{-12}{-2} x6x \leq 6

Step 2: Solve the second inequality 2x10>34-2x - 10 > -34

Add 10 to both sides:

2x>34+10-2x > -34 + 10 2x>24-2x > -24

Now, divide both sides by 2-2 and flip the inequality:

x<242x < \frac{-24}{-2} x<12x < 12

Step 3: Combine the two inequalities

We now have:

  1. x6x \leq 6
  2. x<12x < 12

To find the solution, we need the values of xx that satisfy both inequalities. The solution is the overlap between x6x \leq 6 and x<12x < 12, which is:

x6x \leq 6

Step 4: Graph the solution on the number line

On the number line, the solution is all values less than or equal to 6. This is represented with a closed circle at 6 (since it includes 6) and shading to the left of 6.


Would you like to explore any additional details or clarifications about this solution? Here are some related questions:

  1. What happens to the inequality if we multiply or divide by a positive number instead of a negative number?
  2. How do you graph inequalities that have strict inequalities (<< or >>) versus non-strict inequalities (\leq or \geq)?
  3. How do we solve compound inequalities that involve "and" or "or"?
  4. What is the difference between a solution set represented on a number line versus interval notation?
  5. How do we check the solution of an inequality with a test point?

Tip: When solving inequalities, always pay special attention to the direction of the inequality sign when multiplying or dividing by a negative number.

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Math Problem Analysis

Mathematical Concepts

Inequalities
Solving Compound Inequalities
Graphing Inequalities on the Number Line

Formulas

Solving inequalities: ax + b ≥ c and ax + b > c

Theorems

Division of inequalities by negative numbers flips the inequality sign

Suitable Grade Level

Grades 8-10