Let's review each question one by one based on the provided summaries.
First Question
Which of the following points, if any, are solutions to the system of equations?
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Given equations: \(y = 2x + 2\) and \(y = 2x - 4\).
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Points to check: (0, 2) and (0, −4).
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For (0, 2):
- Substitute \(x = 0\) into both equations:
- First equation: \(y = 2(0) + 2 = 2\) (this point satisfies the first equation).
- Second equation: \(y = 2(0) - 4 = -4\) (this point does not satisfy the second equation).
- Substitute \(x = 0\) into both equations:
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For (0, −4):
- Substitute \(x = 0\) into both equations:
- First equation: \(y = 2(0) + 2 = 2\) (this point does not satisfy the first equation).
- Second equation: \(y = 2(0) - 4 = -4\) (this point satisfies the second equation).
- Substitute \(x = 0\) into both equations:
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Conclusion: Neither of these points are solutions.
Second Question
Which of the following points can be used to best estimate the time when the divers are at the same depth?
- Possible points: (3.67, −7), (3, −6), (3.5, −6.5), (3.5, 6.5).
To determine the best answer, ideally one would need to see the graph to identify where the two lines intersect, indicating the point where the divers are at the same depth.
Assuming typical depths and intersections, either (3, −6) or (3.5, −6.5) could be reasonable estimates, as they are both negative depths (assuming the graph indicates depth below 0). Without the graph, it's challenging to determine the exact answer, but:
- Best estimate might be (3.5, −6.5), assuming it lies reasonably in the midsection of depth.
Third Question
What is the best approximate solution to the system of equations graphed?
- Possible solutions: (3, 7), (3.5, 7.5), (−3, 7), (−3.5, 7.5).
Assuming the intersection of the lines shown in the image is at a point close to (3, 7), it might be reasonable to select:
- (3, 7) as a potential solution unless the intersection clearly points to another coordinate.
Fourth Question
Which statement best describes the system of equations {y = -3x + 7; y = -3x - 7}?
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The equations have the same slope of \(-3\) but different y-intercepts (7 and -7).
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Conclusion: Both equations have a slope of -3, but they do not share the same y-intercept. Thus, the system has no solutions because the lines are parallel.
Fifth Question
Which of the following systems of linear equations has no solution? Choices:
- {4x + y = 17; 4x - y = 3}
- {4x - y = -17; 4x + y = 3}
- {4x - y = 17; 4x + y = 3}
- {4x - y = 17; 4x - y = 3}
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A system has no solution if the lines are parallel (same slope, different intercepts).
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The third choice has the same slope, but different y-intercepts (17 and 3).
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So, {4x - y = 17, 4x + y = 3} or possibly others depending on graph verification.
In conclusion:
- Neither of these points are solutions.
- (3.5, −6.5)
- (3, 7)
- No solutions, because the lines are parallel.
- {4x - y = 17; 4x + y = 3} might represent no solutions depending on precise graphical layout.
If you happen to have further context from the graphs mentioned or need evidenced assessments based on their detailed representations, please let me know!