Answer:
The slope of the line that passes through two points is
(the difference in 'y') divided by (the difference in 'x').
The two points are: (3, -4) and (5, -7)
The difference in 'y' is . . . (-7) - (-4) = -3
The difference in 'x' is . . . (5) - (3) = 2
The slope of the line through those two points is (-3) / (2) .
That's the 3rd choice on the list.
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