Find the slope of the line through each pair of points.

Question

How do I solve this?

 

(9,-14),(-12,-8)

Answer 1

Here is how:

  (9,-14) = (x1,y1) and  (-12,-8) = (x2,y2)

 

Slope = (y2-y1)/(x2-x1)

        

         = (-8 -(-14))/(-12-9)

 

         = (-8+14)/(-12-9)

 

         = (6)/(-21)

         = -2/7