:
y=kx+b,
k , . . , , , , . b= 0 = kx, . , .
Ax + By + = 0.
:
) = 0, Ax + By = 0, , , , = 0, = 0 .
) C =0,
+ = 0, = .
, .
) (3,2) = 0,
By + = 0, = ;
, .
) == 0 = 0 By = , = 0.
.
) = 0 = 0 == 0 = 0.
, ;
b , .
x cosφ. + y sin φ = 0.
, , . , φ , . . .
, .
, A (x1,y1) , k,
yy1=k(xx1).
, (x1,y1), .
, : (x1,y1) (x2,y2), :
, ,
b , b.