Hi,

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

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



L1:  (-6, -3), 

     (-10, 0)   m = -3/4,   y = (-3/4)x - 30/4

L2:  (3, 9), 

      (0, 5)    m = 4/3,     y = (3/4)x  + 5

Lines Perpendicular 

 

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