Math Problem Statement
Which graph represents the inequality x ≥ 2?
Solution
To identify the graph that represents the inequality , let's analyze each option.
- Inequality: implies that the shaded region should include all points where is greater than or equal to .
- Line: The boundary line should be at . Since it is (greater than or equal to), the line itself should be solid, indicating that points on the line are included in the solution.
- Shaded Region: The shading should be on the right side of this line, where values are greater than 2.
Analysis of Each Graph:
- Top left: Shows a solid vertical line at with shading to the right, representing . This graph is correct.
- Top right: Shaded to the left of the line , which represents .
- Bottom left: Shaded to the right of the line , but the line is dashed, indicating (not ).
- Bottom right: Shaded to the left of a dashed line at , which represents .
Conclusion:
The correct answer is the top left graph, as it correctly represents with a solid line at and shading to the right.
Would you like more details on solving inequalities or graph interpretation?
Related Questions:
- How do you graph inequalities on a coordinate plane?
- What is the difference between a solid line and a dashed line in inequality graphs?
- How do you determine the direction of shading in inequality graphs?
- What are the steps to solve a linear inequality and graph it?
- 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