Use the fact that for points  (a1, b1)  and  (a2, b2)  in the coordinate plane, we can calculate the slope of the line through these points using the following formula. Slope =  Δy Δx =  b2 − b1 a2 − a1 Find the slope of the line through the points  (8, 8)  and  (10, 1).

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