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The answer choices which represents the slope of the line described by the points, (1,-1) and (5,-7) is; Choice A; -3/2.
The line in discuss as described in the task content is passing through the points; (1,-1) and (5,-7).
Hence, it follows conventionally from the slope formula that the slope of the line is;
slope, m = (-7-(-1))/(5-1)
m = -6/4
m = -3/2.
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