Hi,

Using the point-slope formula, 

(-4,3) and 

(-2,1)  m = 2/-2 = -1

Note: the standard slope-intercept form for an equation of a line y = mx + b  

where m is the slope and b the y-intercept.    

 y = -x + b

 1 = -1*-2 + b

 -1 = b

 y = -x -1



 

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