Question

Fie punctele A(5,2) B(1,-4) C(2,3)
Reprezentati punctele in sistemul xoy
Scrie ecuatiile dreptei AB​

Answer 1

FACI DESEN. E F SIMPLU!

A(5,2) xA=5, yA=2

B(1,-4) xB=1 yB=-4

C(2,3) xC=2 yC=3

$AB:\frac{x-xA}{xB-xA} =\frac{y-yA}{yB-yA} =>\\\frac{x-5}{-4} =\frac{y-2}{-6} =>-6(x-5)=-4(y-2)=>\\-6x+30=-4y+8=>-6x+22=-4y=>-6x+4y+22=0$

Bafta!