Odpowiedź:
P = ( 3 , 5 ) , L = ( 6 , 4 )
xp = 3 , xl = 6 , yp = 5 , yl = 4
(xl - xp)(y - yp) = (yl - yp)(x - xp)
(6 - 3)(y - 5) = ( 4 - 5)(x - 3)
3(y - 5) = - (x - 3)
3y - 15 = - x + 3
3y = - x + 3 + 15
3y = - x + 18
y = (- 1/3)x + 18/3
y = (- 1/3)x + 6
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Odpowiedź:
P = ( 3 , 5 ) , L = ( 6 , 4 )
xp = 3 , xl = 6 , yp = 5 , yl = 4
(xl - xp)(y - yp) = (yl - yp)(x - xp)
(6 - 3)(y - 5) = ( 4 - 5)(x - 3)
3(y - 5) = - (x - 3)
3y - 15 = - x + 3
3y = - x + 3 + 15
3y = - x + 18
y = (- 1/3)x + 18/3
y = (- 1/3)x + 6