Math Problem Statement

Which graph represents the inequality x ≥ 2?

Solution

To identify the graph that represents the inequality x2x \geq 2, let's analyze each option.

  1. Inequality: x2x \geq 2 implies that the shaded region should include all points where xx is greater than or equal to 22.
  2. Line: The boundary line should be at x=2x = 2. Since it is \geq (greater than or equal to), the line itself should be solid, indicating that points on the line x=2x = 2 are included in the solution.
  3. Shaded Region: The shading should be on the right side of this line, where xx values are greater than 2.

Analysis of Each Graph:

  • Top left: Shows a solid vertical line at x=2x = 2 with shading to the right, representing x2x \geq 2. This graph is correct.
  • Top right: Shaded to the left of the line x=2x = 2, which represents x2x \leq 2.
  • Bottom left: Shaded to the right of the line x=2x = 2, but the line is dashed, indicating x>2x > 2 (not x2x \geq 2).
  • Bottom right: Shaded to the left of a dashed line at x=2x = 2, which represents x<2x < 2.

Conclusion:

The correct answer is the top left graph, as it correctly represents x2x \geq 2 with a solid line at x=2x = 2 and shading to the right.

Would you like more details on solving inequalities or graph interpretation?

Related Questions:

  1. How do you graph inequalities on a coordinate plane?
  2. What is the difference between a solid line and a dashed line in inequality graphs?
  3. How do you determine the direction of shading in inequality graphs?
  4. What are the steps to solve a linear inequality and graph it?
  5. How can inequalities be used to define regions in real-world applications?

Tip: For inequalities with "greater than or equal to" or "less than or equal to," use a solid line; for strict inequalities, use a dashed line.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities
Coordinate Plane

Formulas

Graphing linear inequalities

Theorems

Graphical representation of inequalities

Suitable Grade Level

Grades 6-8