To determine whether the lines represented by the equations \(x + y = 2\) and \(-x + y = 7\) are parallel or intersecting, we can examine the slopes of the lines derived from these equations.
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Convert the equations to slope-intercept form \(y = mx + b\):
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For \(x + y = 2\): \[ y = -x + 2 \] The slope \(m_1 = -1\).
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For \(-x + y = 7\): \[ y = x + 7 \] The slope \(m_2 = 1\).
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Compare the slopes:
- The slope of the first line is \(-1\).
- The slope of the second line is \(1\).
Since the slopes of the two lines are different (\(-1\) and \(1\)), this means that the lines are not parallel and will intersect at some point.
From this analysis, the correct statement would be: "The graph of −x+y=7 is incorrect. The lines would intersect." Therefore, the lines should intersect, not be parallel.
So the correct response is: The graph of −x+y=7 is incorrect. The lines would intersect.