Math Problem Statement
Solution
To determine which linear inequality is represented on the graph, let's analyze the key characteristics of the shaded region and the boundary line.
Step 1: Analyzing the Slope and Y-Intercept
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The boundary line on the graph has a slope and intercept we can identify:
- The line appears to pass through points such as and .
- Using these points, we can calculate the slope using the formula:
- Therefore, the slope of the line is , and the y-intercept is .
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Thus, the equation of the line is:
Step 2: Determining the Inequality
- The region below the line is shaded, indicating a "less than or equal to" inequality.
- Since the line is dashed, it suggests a strict inequality (either or ).
Conclusion
The inequality that represents the shaded region is:
So, the correct answer is: .
Would you like a breakdown of how to interpret different types of inequalities on graphs?
Here are some follow-up questions that may help deepen your understanding:
- How do you determine the slope of a line from a graph?
- Why does a dashed line represent a strict inequality?
- What does shading below the line indicate in terms of inequalities?
- How can you determine if a graph shows a "less than" or "greater than" inequality?
- What would change if the line were solid instead of dashed?
Tip: Remember, when identifying inequalities from graphs, the slope and y-intercept of the line, along with the shading direction, are key indicators of the inequality type.
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Math Problem Analysis
Mathematical Concepts
Linear Inequalities
Graphing Inequalities
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b
Theorems
Properties of Inequalities
Graphing Linear Inequalities
Suitable Grade Level
Grades 8-10
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