Math Problem Statement
Which graph represents the inequality y ≥ 2 - 2x?
Solution
To determine which graph represents the inequality , let's break it down step by step.
Steps to Analyze the Inequality
-
Rewrite the inequality in slope-intercept form .
- The slope is .
- The -intercept is .
-
Graph the Boundary Line:
- The boundary line is .
- Since the inequality is , the boundary line will be solid, and the shading will be above the line.
-
Identify the Correct Graph:
- Look for a graph with a solid line with slope (downward slope).
- The shading should be on the side where values are greater than or equal to the line.
Correct Graph Analysis
Upon examining the options:
- The top right graph shows a solid line with a slope of and shading above the line.
Therefore, the correct graph is the top right graph.
Need more details or clarification?
Related Questions:
- How do you determine the slope and intercept from an equation?
- What does the inequality symbol signify in a graph?
- Why is the line solid instead of dashed for inequalities?
- How do you determine which side of the line to shade?
- Can you explain how to graph step by step?
Tip:
For inequalities, always remember to use a solid line for or , and a dashed line for or .
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Math Problem Analysis
Mathematical Concepts
Linear Inequalities
Graphing
Slope-Intercept Form
Formulas
Slope-intercept form: y = mx + b
Theorems
Properties of Linear Inequalities
Suitable Grade Level
Grades 7-9