👤

1.Determinati ecuatia dreptei care trece prin punctele A(4,-3) , B(3,-4), in reperul cartezian xOy.


Răspuns :

(x-xA)/(xB-xA)=(y-yA)/(yB-yA)
(x-4)/(3-4)=(y+3)/(-4+3)
(x-4)/-1=(y+3)/-1
x-4=y+3
y=x-7