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Systems of Inequalities Practice
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Question
Does the graph represent the solution set of the system of inequalities?
−2x+y≥1
y<−12x−3
Use the image to answer the question.
The coordinate grid has x and y axes labeled from negative 5 to 5. The graph of a solid line goes through the points negative 1, negative 1; 0, 1; and 1, 3. There is shading above the line. The graph of a dashed line goes through the points negative 4, negative 1; 0, negative 3; and 2, negative 4. There is shading below the line.
Select the correct answers from the lists.
(2 points)
One should be a solid line, with a slope of 2, a y-intercept of 1, and shading
it.
The other should be a
line, with a slope of −12
, a y-intercept of −3
, and shading
it.
So, the graph
represent the solution set of the system of inequalities.
Remaining Attempts : 3
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Answers
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Answered by
GPT-4o mini
To determine whether the graph represents the solution set of the given system of inequalities, we need to analyze each inequality and its corresponding graph representation.
1. **First Inequality:** \( -2x + y \geq 1 \)
- Rearranging this yields \( y \geq 2x + 1 \).
- This is a solid line (because the inequality includes "≥") with a slope of 2 and a y-intercept of 1.
- The region that is shaded should be above the line.
2. **Second Inequality:** \( y < -12x - 3 \)
- The line represented by this inequality is dashed because it does not include equality.
- It has a slope of -12 and a y-intercept of -3.
- The region that is shaded should be below the line.
Now we analyze the provided graph:
- The graph has a **solid line** (correct for the first inequality) with a slope of 2 and a y-intercept of 1, shading **above** the line.
- It also has a **dashed line** (correct for the second inequality) with a slope of -12 and a y-intercept of -3, shading **below** the line.
### Conclusions
- The first line and its corresponding shading are consistent with the first inequality.
- The second line and its shading are consistent with the second inequality.
### Final Answer
Thus, the graph **does represent the solution set of the system of inequalities**.
1. **First Inequality:** \( -2x + y \geq 1 \)
- Rearranging this yields \( y \geq 2x + 1 \).
- This is a solid line (because the inequality includes "≥") with a slope of 2 and a y-intercept of 1.
- The region that is shaded should be above the line.
2. **Second Inequality:** \( y < -12x - 3 \)
- The line represented by this inequality is dashed because it does not include equality.
- It has a slope of -12 and a y-intercept of -3.
- The region that is shaded should be below the line.
Now we analyze the provided graph:
- The graph has a **solid line** (correct for the first inequality) with a slope of 2 and a y-intercept of 1, shading **above** the line.
- It also has a **dashed line** (correct for the second inequality) with a slope of -12 and a y-intercept of -3, shading **below** the line.
### Conclusions
- The first line and its corresponding shading are consistent with the first inequality.
- The second line and its shading are consistent with the second inequality.
### Final Answer
Thus, the graph **does represent the solution set of the system of inequalities**.
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