To determine the validity of the equations and their respective graphs, let's analyze them:
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The first equation is \(x + y = 2\). This line passes through the points (0, 2) and (2, 0), as given.
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The second equation is \(-x + y = 7\) which can be rewritten as \(y = x + 7\). This is a line with a slope of 1 that passes through the y-intercept (0, 7); it will also cross the x-axis at (-7, 0) and (7, 0) as indicated.
Since we have determined the slopes of both lines:
- The line for \(x + y = 2\) has a slope of -1.
- The line for \(-x + y = 7\) has a slope of 1.
Given that the slopes are different, the lines should intersect, not be parallel.
Based on the provided information, the correct conclusion about the graphs is:
The graph of \(-x+y=7\) is incorrect. The lines should intersect.