The slope of the line which passes through the two points as given in the task content is; m = -5/6.
The slope of the line in discuss which passes through the points as given can be determined from the slope formula as follows;
slope, m = (-5-5)/(21-9)
m = -10/12
m = -5/6
Ultimately, the slope of the line which passes through the two points as given in the task content is; m = -5/6.
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