Math Problem Statement
Which inequality is shown in this graph?
Solution
To determine which inequality is shown in the graph, let's first analyze the elements of the image:
-
Line equation:
- The red line passes through the points (-2, 2) and (0, -2).
- The slope () of the line is calculated as the change in divided by the change in :
- So, the slope is , and using the point , we can determine the y-intercept, which is .
- Therefore, the equation of the line is:
-
Shading:
- The graph shows the area above the red line shaded, which means the inequality is .
Thus, the inequality represented by the graph is:
- A.
Would you like more details or clarifications?
Here are 5 related questions to expand on this concept:
- How do you determine the slope of a line from two points?
- What is the difference between solid and dashed lines in inequality graphs?
- How do you know whether to shade above or below the line?
- Can a linear inequality have multiple solutions? Why or why not?
- What does the y-intercept represent in a graph?
Tip: Always remember that the inequality sign ( or ) determines where to shade on the graph: above for and below
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Graphing Inequalities
Slope-Intercept Form
Formulas
y = mx + b (slope-intercept form)
Theorems
Graphing Linear Inequalities
Understanding Slope and Y-Intercept
Suitable Grade Level
Grades 8-10