code: def lineBiasAndK(Apoint, Bpoint):
      K = pointAngle(Apoint, Bpoint)
      B = Apoint[1] - K * Apoint[0]
      return K, B
  
imports: import math
  import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: lineBiasAndK(Apoint, Bpoint) and returns: K,  B