Ответ:4.k = 21-0/-2-5= 21/-7=-3
y = -3(x-5)+0= -3x+15.
Объяснение:4.A(x1;y1) и B(x2;y2)
k=y2-y1/x2-x1
y=k(x-x1)+y1
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Ответ:4.k = 21-0/-2-5= 21/-7=-3
y = -3(x-5)+0= -3x+15.
Объяснение:4.A(x1;y1) и B(x2;y2)
k=y2-y1/x2-x1
y=k(x-x1)+y1