Problem 471

 

Find the slope, if it exists, of the line containing the pair of points.

(2,1) and (10,-8)

The slope m = ?

 

Solution:-

 

When two points (x1,y1) and (x2,y2)  are given

slope=(y2-y1)*(x2-x1)

put the values

m=\frac{(-8-1)}{(10-2)}

m=\frac{-9}{8}

 

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