Question

Va rog ajutati ma urgent...​

Answer 1

Răspuns:

1. m=(xB-xA)/(yB-yA)

m=(3-7)/(-5-11)=-4/-16=1/4

2. AB:(y-yA)/(yB-YA)=(x-xA)/(xB-xA)

AB:(y+1)/3=(x+5)/2=>AB:2y+2=3x+15=>AB:y=3x/2+13/2

3. formulele sunt ca la ex2

AB:(y-2)/3=(x-1)/-2=>-2y+4=3x-3=>AB:y=-3/2x+7/2

AC:(y-2)/1=(x-1)/7=>AC:7y-14=x-1=>AC:y=x/7+13/7

BC: (y-5)/-2=(x+1)/9=>BC:9y-45=-2x-2=>AC:y=-2x/9+43/9

Answer 2

Răspuns:

is niste formule pe care le gsesti pe net, si numa cu alea rezolvi genul asta de probleme.