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The slope of the line can be determined by looking at the change in y-coordinates over the change in x-coordinates. The slope is equal to the change in y divided by the change in x.
Using the given responses, we have the following points: (9,-19) and (-4, -9).
The change in y is -9 - (-19) = 10.
The change in x is -4 - 9 = -13.
So, the slope of the line is 10 / (-13) = -10/13.