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find the equation of the line that pass through (-2,2)  and falling 2 units  for every units increas in x . 

 Jun 10, 2020
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Slope = rise / run     given for this problem as   -2 /1 = -2

 

y = mx + b      m = slope   

   so we have    y = -2x+b     Now substitute in the point given to calc 'b'

                         2 = -2(-2) + b

                                   so b = -2

 y = -2x-2   

 Jun 11, 2020

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