Odpowiedź:
A = ( 2 , 3 ) , B = ( 4 , - 1 )
xa = 2 , xb = 4 , ya = 3 , yb = - 1
a - współczynnik kierunkowy = (yb - ya)/(xb - xa) =
= (- 1 - 3)/(4 - 2) = - 4/2 = - 2
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Odpowiedź:
A = ( 2 , 3 ) , B = ( 4 , - 1 )
xa = 2 , xb = 4 , ya = 3 , yb = - 1
a - współczynnik kierunkowy = (yb - ya)/(xb - xa) =
= (- 1 - 3)/(4 - 2) = - 4/2 = - 2